Sennheiser
Sennheiser HD 4.40BT Wireless Headphones - Good Condition
Technical Data
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Impedance
- 18 Ω
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Frequency response (Microphone)
- 100 - 10,000 Hz
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Frequency response
- 18 - 22,000 Hz
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Sound pressure level (SPL)
- 113dB (Passive: 1kHz/1Vrms)
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THD, total harmonic distortion
- <0.5% (1kHz/100dB)
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Pick-up pattern
- Dual omnidirectional microphones
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Battery Specification
- Li-ion Polymer Battery
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Codecs
- AptX
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All ReDial purchases include
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Your Device Fully functioning and ready for use out of the box! This device went through our 44-Point Check to ensure that it's in its peak performance when it arrives to you. |
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Charging Cable and Wall Adapter This device comes with a compatible USB charging cable and Australian AC wall adapter. |
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Box Only selected devices come with their original boxes and manuals. If they're not available, your device will be packaged using our standard box. |
This device has undergone a 44-Point diagnostic check to ensure full
functionality.
Our 44-Point diagnostic check includes:
LCD functionality
A minimum of 80% battery health
Fully functional buttons
Fully functional Wi-Fi & 4G
Fully functional cameras
Fully functional charger port
Fully functional Touch ID
Fully functional microphone and speakers
Network unlocked
As New - These devices are in excellent condition with no signs of use
Very Good – These devices are in very good condition with minimal signs of use, minor scuffing or marking to the case or screen of device, no chips or dents.
Good - These devices are a fair condition with more significant signs of use, heavier wear and tear, widespread scuffing, marking, or chips or dents to corners of device, but no cracks to screen.