Function: battery display, call function
Color: white, black, pink, green, blue, yellow
Bluetooth protocol: 5.0
Channel: stereo
How to use: earplug style
Connection method: Bluetooth connection
Whether anti-sweat: anti-sweat
Use time: 3-4 hours
Power input: 5V/1A
Whether there is a pop-up window: there is a pop-up window function
Transmission distance: 10m
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