Price and specifications
Sennheiser HD 4.40 wireless headphones

Impedance 18 Ω
Play music time 25 h
Wireless distance 10 m
Microphone Yes
Waterproof No
TF card support No
Control buttons Yes

Wireless headphones Sennheiser HD 4.40

Release DateMarch 2017
Availability On sale
Brand Sennheiser
Model HD 4.40



Application Computer, Smartphone, Media Player
Wireless technology Bluetooth
Color Black


Impedance 18 Ω (Ohm)
Sensitivity 113 Db
Frequency Responses 100-10000 Hz


Play music time 25 h
Talking time 25 h
Standby time 2160 h
Charging time 2 h
Battery capacity 600 mAh
Removable battery No


Removable wire Yes
Connecting interface 3.5mm, 2.5mm, Micro USB
Wireless distance 10 m
Bluetooth version 4.0
Bluetooth features A2DP, AVRCP, HFP, HSP


Microphone Yes
FM radio No
Noise Cancelling Yes
Control buttons Yes
Waterproof No
TF card support No
Foldable headphones Yes


Weight 225 g

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