FMJ F8 TWS Stereo bluetooth 5.0 Earphone HiFi Music Binaural Call In-ear Earbuds ... (COLOR.: BLACK)

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Features:
- Portable, compact and lightweight.
- Intelligent noise cancelling technology ensures HD clear calls.
- Premium large 6mm dynamic speaker unit delivers deep bass and HiFi sound quality.
- Ungraded bluetooth 5.0 chip ensures fast and stable wireless transmission.
- Come with 2200mAh large capacity charging case, easy to recharge the earbuds. Indicator light keeps you aware of the charging status.

Specification:
Headphone basic parameter size: single head (length: 27 * 23 * 23mm)
Weight: (single head: 5.5 g)
Headphone charging current: 50mA
Headphone full time: about 2.5 hours
Charging warehouse full time: about 5 hours
Working voltage: 3.3V-4.2V
Headphone standby time: about 130 hours
Music time: 10-12 hours
Talk time: 10-12 hours
Charging warehouse capacity: 2200amh
Headphone capacity: 85amh
Chip: Loda-AB1532D
bluetooth Version: 5.0
Support: Tensilica HiFi EP, Hardware FFT, SRC, Filter, MCSyncTWS +
RF transmit power: class3
Transmission range (Hz): 2.40GHz-2.48GHz
Communication distance: 10m
Audio sampling accuracy: 16bits
Audio sampling rate: Up to 96 kHz
Audio encoding format: CVSD, mSBC, SBC, AAC
Signal to noise ratio:> 95dB
Working temperature: -15c ~ + 60 a??
Operating humidity: 10% 85% (non-freezing state)
Basic parameters of headphone speakers
Speaker specifications: ?|6mm
Impedance: 16?? / typ
Frequency (Hz): 20Hz ~ 20KHz
Sensitivity: 93±3dB
Input power: conventional 2mW, maximum 5mW
Basic parameters of headset microphone
M1C Type: Silicon Microphone
M1C sensitivity: -42±3dB
SPL: 130dB