AWEI Wireless In-Ear Earphones Bluetooth B990BL black

AWEI B990BL high-end wireless Bluetooth stereo headphones with excellent HD sound and comfortable fit, are the perfect partner for your daily music listening.
Ensure stability so you can take calls and listen to music without worrying about interference. Designed for people who don't want their active lives to be limited by wires.

Specifications:

Bluetooth Version: V4.2
Operation Profiles: HSP, HFP, A2DP, AVRCP
Talk time: 6 h
Music listening time: 4 h
Standby time: 200 h
Charging time: 1.5 h
Bluetooth range: 10 m.
Battery capacity: 55 mAh
Impedance: 32ohm ± 15%
Sensitivity: 100dB ± 3dB
Frequency range: 20 Hz-20 KHz
Ambient temperature: -20/60C