Wireless F9 Bluetooth 5.1 for phone

Weight: 80 g
Design: Liners
Product color: Black
Description: Design: in-ear, device type: wireless headphones, ANC Active Noise Canceling, plug connector: microUSB, functions: surround sound
Plug connector: microUSB
Functions: Surround sound
Standby time: 650 h
Talk Time: 5 h
Impedance: 32 ohm
Length of cable: 0.25 m
Charging time: 1 hour
Device type: Wireless headphones
Mount type: Ear mount
Maximum playback frequency: 20000 Hz
Minimum repeatable frequency: 20 Hz
Bluetooth version: 5.1
Active Noise Canceling ANC: There is