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Contents Contents Important safety instructions 2 The HD 4.40BT wireless headphones 4 Package includes...6 Product overview...7 Overview of the headphones 7 Overview of pictograms 7 Overview of the LED indications 9 Overview of buttons 10 Getting started...12 Charging ... cable 26 Care and maintenance 27 Replacing the ear pads 27 Storage and handling 28 Replacing/removing the rechargeable battery 29 Troubleshooting...30 Leaving the Bluetooth transmission range 31 Clearing previously paired devices 31 Specifications...32 Trademarks...33...
Contents Contents Important safety instructions 2 The HD 4.40BT wireless headphones 4 Package includes...6 Product overview...7 Overview of the headphones 7 Overview of pictograms 7 Overview of the LED indications 9 Overview of buttons 10 Getting started...12 Charging ... cable 26 Care and maintenance 27 Replacing the ear pads 27 Storage and handling 28 Replacing/removing the rechargeable battery 29 Troubleshooting...30 Leaving the Bluetooth transmission range 31 Clearing previously paired devices 31 Specifications...32 Trademarks...33...
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...HD 4.40BT XX Clean the product only with care and store it to extreme temperatures to prevent accidents and choking hazards. XX Always include this instruction manual carefully and completely before using the product. XX Only use the product in environments where Bluetooth® wireless... transmission is from cardiac pacemakers or implanted defibrillators. The normal operating temperature is permitted. XX Only use an obviously defective product. XX Use the product with a soft, dry cloth. Sennheiser headphones sound exceptionally ...
...HD 4.40BT XX Clean the product only with care and store it to extreme temperatures to prevent accidents and choking hazards. XX Always include this instruction manual carefully and completely before using the product. XX Only use the product in environments where Bluetooth® wireless... transmission is from cardiac pacemakers or implanted defibrillators. The normal operating temperature is permitted. XX Only use an obviously defective product. XX Use the product with a soft, dry cloth. Sennheiser headphones sound exceptionally ...
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... 10 and 40°C/50 and 104°F . When not using the product for extended periods of this product is obviously defective. HD 4.40BT | 3 Compatible Bluetooth devices include those that support wireless communication via Bluetooth. Charge products with mobile devices (e.g. Sennheiser does not... sunlight or throw into fire. Only use . Switch battery-powered products off after use rechargeable batteries and chargers recommended by Sennheiser. Do not charge a product with built-in rechargeable batteries regularly (about every 3 months). mobile music players, mobile phones...
... 10 and 40°C/50 and 104°F . When not using the product for extended periods of this product is obviously defective. HD 4.40BT | 3 Compatible Bluetooth devices include those that support wireless communication via Bluetooth. Charge products with mobile devices (e.g. Sennheiser does not... sunlight or throw into fire. Only use . Switch battery-powered products off after use rechargeable batteries and chargers recommended by Sennheiser. Do not charge a product with built-in rechargeable batteries regularly (about every 3 months). mobile music players, mobile phones...
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Features • Closed circumaural design featuring Bluetooth® wireless technology • Robust, foldable headband for easy storage on the move. The HD 4.40BT Wireless headphones The HD 4.40BT Wireless headphones The HD 4.40BT Wireless headphones offer great sound quality for every day listening on the go • Immediate pairing to smart devices using NFC • Up to ...companion for your mobile devices, providing you with unrivalled listening pleasure and easy communication with an attachable audio cable for use in environments where Bluetooth® connectivity is not permitted...
Features • Closed circumaural design featuring Bluetooth® wireless technology • Robust, foldable headband for easy storage on the move. The HD 4.40BT Wireless headphones The HD 4.40BT Wireless headphones The HD 4.40BT Wireless headphones offer great sound quality for every day listening on the go • Immediate pairing to smart devices using NFC • Up to ...companion for your mobile devices, providing you with unrivalled listening pleasure and easy communication with an attachable audio cable for use in environments where Bluetooth® connectivity is not permitted...
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...-Free Profile), HSP (Headset Profile), AVRCP (Audio Video Remote Control Profile) and A2DP (Advanced Audio Distribution Profile). The HD 4.40BT Wireless headphones Bluetooth The headphones comply with the Bluetooth 4.0 standard and are compatible with all Bluetooth 1.1, 1.2, 2.0, 2.1, 3.0 and 4.0 devices with a single touch. Utilizing aptX®, Bluetooth technology can be assured of crisp, pure and full stereo sound.
...-Free Profile), HSP (Headset Profile), AVRCP (Audio Video Remote Control Profile) and A2DP (Advanced Audio Distribution Profile). The HD 4.40BT Wireless headphones Bluetooth The headphones comply with the Bluetooth 4.0 standard and are compatible with all Bluetooth 1.1, 1.2, 2.0, 2.1, 3.0 and 4.0 devices with a single touch. Utilizing aptX®, Bluetooth technology can be assured of crisp, pure and full stereo sound.
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... headphones switch on Pairing/connecting with a device is successful The headphones switch off The headphones are disconnected from the device The headphones are outside the Bluetooth range of the device Pairing with a device is unsuccessful 1s The headphones are in pairing mode 2s 2s The device is/devices are successfully cleared... mode (headphones are paired but not connected to the device) LED indications during calls LED Meaning Incoming call Incoming call with an almost empty battery HD 4.40BT | 9
... headphones switch on Pairing/connecting with a device is successful The headphones switch off The headphones are disconnected from the device The headphones are outside the Bluetooth range of the device Pairing with a device is unsuccessful 1s The headphones are in pairing mode 2s 2s The device is/devices are successfully cleared... mode (headphones are paired but not connected to the device) LED indications during calls LED Meaning Incoming call Incoming call with an almost empty battery HD 4.40BT | 9
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... that data can save the connection profiles of up to pairing mode. The HD 4.40BT Wireless headphones comply with the headphones in locations where Bluetooth is permitted. paired + connected paired 14 | HD 4.40BT The transmitted radio waves of mobile phones can instantly pair the headphones with your headphones with a few devices, they automatically try...
... that data can save the connection profiles of up to pairing mode. The HD 4.40BT Wireless headphones comply with the headphones in locations where Bluetooth is permitted. paired + connected paired 14 | HD 4.40BT The transmitted radio waves of mobile phones can instantly pair the headphones with your headphones with a few devices, they automatically try...
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...or off scan 1s 1s 3 Connect to Bluetooth device? You can pair the headphones with a Bluetooth device using NFC regardless of the headphones' power state (on your device, proceed as an example, how to pair your HD 4.40BT Wireless headphones with other devices using NFC. The ...the pairing confirmation dialog appears on the screen of the headphones. Activate NFC on your smartphone). Getting started Pairing the headphones with a Bluetooth device using NFC The following sections describe, using a smartphone as described in the instruction manual of the device. You hear the voice ...
...or off scan 1s 1s 3 Connect to Bluetooth device? You can pair the headphones with a Bluetooth device using NFC regardless of the headphones' power state (on your device, proceed as an example, how to pair your HD 4.40BT Wireless headphones with other devices using NFC. The ...the pairing confirmation dialog appears on the screen of the headphones. Activate NFC on your smartphone). Getting started Pairing the headphones with a Bluetooth device using NFC The following sections describe, using a smartphone as described in the instruction manual of the device. You hear the voice ...
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..." and a beep sound. The LED flashes blue and red. The headphones are displayed. 4. From the list of found Bluetooth devices, select "HD 4.40BT". Activate Bluetooth on (see page 19). -- Getting started Pairing the headphones with a Bluetooth device Ensure that the headphones are within the 20 cm range of your smartphone, start a search for...
..." and a beep sound. The LED flashes blue and red. The headphones are displayed. 4. From the list of found Bluetooth devices, select "HD 4.40BT". Activate Bluetooth on (see page 19). -- Getting started Pairing the headphones with a Bluetooth device Ensure that the headphones are within the 20 cm range of your smartphone, start a search for...
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The headphones go to idle mode. › lost connection". If no device is found, you hear the voice prompt "lost connection ‹ Menu Bluetooth on your smartphone. The headphones then search for other paired devices. The headphones are disconnected from your Bluetooth device XX Deactivate Bluetooth on Bluetooth off HD 4.40BT | 17 Getting started Disconnecting the headphones from the smartphone.
The headphones go to idle mode. › lost connection". If no device is found, you hear the voice prompt "lost connection ‹ Menu Bluetooth on your smartphone. The headphones then search for other paired devices. The headphones are disconnected from your Bluetooth device XX Deactivate Bluetooth on Bluetooth off HD 4.40BT | 17 Getting started Disconnecting the headphones from the smartphone.
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... Fast-forwarding or rewinding a track XX Push and hold the multifunction button up or down . Push Function Fast-forwards the track Rewinds the track 22 | HD 4.40BT Press Function 1x Plays or pauses music Playing the next/previous track XX Push the multifunction button up or down . Playing/pausing track XX... not support all functions. Playing music Controlling music playback The following music functions are only available when the headphones and your device are connected via Bluetooth.
... Fast-forwarding or rewinding a track XX Push and hold the multifunction button up or down . Push Function Fast-forwards the track Rewinds the track 22 | HD 4.40BT Press Function 1x Plays or pauses music Playing the next/previous track XX Push the multifunction button up or down . Playing/pausing track XX... not support all functions. Playing music Controlling music playback The following music functions are only available when the headphones and your device are connected via Bluetooth.
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... smartphone and you receive a call, you hear a ring tone in the headphones and the LED flashes blue. If you are connected via Bluetooth. Making calls on the headphones Making calls on the headphones The following call functions are only available if the headphones and smartphone are playing music... until you end the call. Making a call XX Dial the desired number on your headphones are connected to the headphones, select the HD 4.40BT Wireless as the audio source on your smartphone (see the instruction manual of the headphones is low, the LED flashes red. Some smartphones may...
... smartphone and you receive a call, you hear a ring tone in the headphones and the LED flashes blue. If you are connected via Bluetooth. Making calls on the headphones Making calls on the headphones The following call functions are only available if the headphones and smartphone are playing music... until you end the call. Making a call XX Dial the desired number on your headphones are connected to the headphones, select the HD 4.40BT Wireless as the audio source on your smartphone (see the instruction manual of the headphones is low, the LED flashes red. Some smartphones may...
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... called "redialing" 1x Cancels redialing "call from the headphones to the 2s smartphone Transfers a call ended" 24 | HD 4.40BT Making calls on the headphones Transferring a call to be activated on your smartphone or Bluetooth device (with HFP profile). Press Function Transfers a call from the smartphone to the headphones Redialing The redialing function...
... called "redialing" 1x Cancels redialing "call from the headphones to the 2s smartphone Transfers a call ended" 24 | HD 4.40BT Making calls on the headphones Transferring a call to be activated on your smartphone or Bluetooth device (with HFP profile). Press Function Transfers a call from the smartphone to the headphones Redialing The redialing function...
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Say your voice command, such as "Call Jane". Press the multifunction button and hold for making calls. 1. Making calls on the headphones Voice control function The voice control function is only supported by Bluetooth smartphones with HFP profile. HD 4.40BT | 25 The Bluetooth smartphone calls Jane. You can use this function when the headphones are not actively playing music or are used for 2 seconds. Press Function Voice prompt 2s Starts voice control "voice dialing" 2.
Say your voice command, such as "Call Jane". Press the multifunction button and hold for making calls. 1. Making calls on the headphones Voice control function The voice control function is only supported by Bluetooth smartphones with HFP profile. HD 4.40BT | 25 The Bluetooth smartphone calls Jane. You can use this function when the headphones are not actively playing music or are used for 2 seconds. Press Function Voice prompt 2s Starts voice control "voice dialing" 2.
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Bluetooth is restricted or not allowed. Inserting the audio cable 1. The headphones immediately switch off once the audio cable is plugged into the audio input of your smartphone. 26 | HD 4.40BT Insert the 2.5 mm jack plug into the audio input. Connect the 3.5 mm jack plug to music when the headphones are running out of battery or when Bluetooth transmission is deactivated. 2. Using the audio cable Using the audio cable Use the audio cable to listen to the audio output of the headphones.
Bluetooth is restricted or not allowed. Inserting the audio cable 1. The headphones immediately switch off once the audio cable is plugged into the audio input of your smartphone. 26 | HD 4.40BT Insert the 2.5 mm jack plug into the audio input. Connect the 3.5 mm jack plug to music when the headphones are running out of battery or when Bluetooth transmission is deactivated. 2. Using the audio cable Using the audio cable Use the audio cable to listen to the audio output of the headphones.
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...To find a Sennheiser service partner in the table, or if the solutions provided do not work cannot connect Check if your smartphone supports the HFP or HSP Bluetooth profile Smartphone is switched off Switch your smartphone on Bluetooth is deactivated on your smartphone Activate Bluetooth on your ... for 4 seconds go to pairing mode If you encounter a problem that is not listed in your country, visit www.sennheiser.com. 30 | HD 4.40BT No audio signal Headphones are not Check if the headphones paired with your device are paired. Troubleshooting Troubleshooting Problem Possible...
...To find a Sennheiser service partner in the table, or if the solutions provided do not work cannot connect Check if your smartphone supports the HFP or HSP Bluetooth profile Smartphone is switched off Switch your smartphone on Bluetooth is deactivated on your smartphone Activate Bluetooth on your ... for 4 seconds go to pairing mode If you encounter a problem that is not listed in your country, visit www.sennheiser.com. 30 | HD 4.40BT No audio signal Headphones are not Check if the headphones paired with your device are paired. Troubleshooting Troubleshooting Problem Possible...
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... previously paired devices XX Set the headphones to 10 meters. XX Simultaneously press the multifunction button and the power button for 4 seconds. HD 4.40BT | 31 With a free line of sight, the transmission range of the smartphone, the sound quality deteriorates and you hear the...range largely depends on environmental conditions such as wall thickness, wall composition etc. The headphones are in the Bluetooth transmission range of your smartphone. Troubleshooting Leaving the Bluetooth transmission range Wireless calling and streaming are only possible in pairing mode.
... previously paired devices XX Set the headphones to 10 meters. XX Simultaneously press the multifunction button and the power button for 4 seconds. HD 4.40BT | 31 With a free line of sight, the transmission range of the smartphone, the sound quality deteriorates and you hear the...range largely depends on environmental conditions such as wall thickness, wall composition etc. The headphones are in the Bluetooth transmission range of your smartphone. Troubleshooting Leaving the Bluetooth transmission range Wireless calling and streaming are only possible in pairing mode.
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Specifications Specifications HD 4.40BT Ear coupling Frequency response Transducer principle Sensitivity (microphone) Sound pressure level (SPL) Impedance THD (1 kHz, 100 dB) Pick-up pattern Input power Operating time ... omni-directional microphones 3.7 VDC, 600 mAh: built-in rechargeable Lithium-Polymer battery 5 VDC, 400 mA: USB charging 25 hours approx. 2 hours approx. 225 g Lithium Polymer Bluetooth version 4.0/NFC pairing 1.4 m audio cable, 3.5 mm angled plug, gold-plated USB charging cable 32...
Specifications Specifications HD 4.40BT Ear coupling Frequency response Transducer principle Sensitivity (microphone) Sound pressure level (SPL) Impedance THD (1 kHz, 100 dB) Pick-up pattern Input power Operating time ... omni-directional microphones 3.7 VDC, 600 mAh: built-in rechargeable Lithium-Polymer battery 5 VDC, 400 mA: USB charging 25 hours approx. 2 hours approx. 225 g Lithium Polymer Bluetooth version 4.0/NFC pairing 1.4 m audio cable, 3.5 mm angled plug, gold-plated USB charging cable 32...
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... names mentioned in other countries. Trademarks Trademarks Sennheiser is under license. KG is a trademark of their respective holders. The N-Mark is a trademark or registered trademark of such marks by Bluetooth SIG, Inc. and any use of NFC Forum, Inc. HD 4.40BT | 33 KG. in the United... States and in this instruction manual/ safety guide may be the trademarks or registered trademarks of Sennheiser electronic GmbH & Co. The aptX mark...
... names mentioned in other countries. Trademarks Trademarks Sennheiser is under license. KG is a trademark of their respective holders. The N-Mark is a trademark or registered trademark of such marks by Bluetooth SIG, Inc. and any use of NFC Forum, Inc. HD 4.40BT | 33 KG. in the United... States and in this instruction manual/ safety guide may be the trademarks or registered trademarks of Sennheiser electronic GmbH & Co. The aptX mark...