EDIFIER W820BT, Operating Instructions Manual

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1
Before using the headphone, please carefully read this user manual and
keep securely for further reference.
Note: The design and specifications may be changed without prior notice
in order to make improvements.
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Features
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Dual batteries setup, playback time for up to 80 hrs
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Bluetooth V4.1 with CSR technology
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Foldable design with flexible steel headband
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Standard 3.5mm/AUX audio cable included
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A new generation of 40mm NdFeB driver units
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Specifications
Bluetooth version: Bluetooth V4.1
Bluetooth profiles: HFP, HSP, A2DP, AVRCP
Effective distance: 10m
Playback time: About 80 hours
Input: 5.0V 1A
Charging time: About 4 hours
Battery capacity: 1340mAh lithium-ion batteries
Frequency response: 20Hz-20KHz
Sensitivity: 100dB
Impedance: 32Ω
Audio input: Bluetooth, wired
Driver unit: Ф40mm
Frequency Band: 2.402GHz - 2.480GHz
RF Power Output: ≤20 dBm (EIRP)