Concept bone conduction earphone(directional audio) F808

Detailed information:

Bluetooth version: V5.0

Bluetooth chip: BK3266

Support protocol: HSP/HFP/A2DP/AVRCP

Transmission distance: 10M

Charging specification: Micro-USB

Charging power: 4.2V/0.5~1A

Charging time: about 120 minutes

Standby time: 140 hours

Talk time: about 7 hours

Listening time: about 8 hours

Battery capacity: 140mAh

Speaker size: 8.5*10*2.5mm

Horn material: PTE

Magnet material: rubidium iron boron

Sensitivity: 104±3dB

Rated power: 30 mW

Impedance: 28 Ω

Distortion: <5% at 1000Hz

Microphone sensitivity: 42±3 dB

Microphone directivity: omnidirectional

Signal to noise ratio: 58dB