Color: black, white, blue, pink
Support Customization: support
Bluetooth protocol: 5.0
Transmission range: 10 meters
Channel: stereo
Overprint logo: yes
Whether it is mono binaural: bilateral stereo
Suitable gift giving occasions: birthday, festival, advertising promotion, employee welfare, business gifts, opening ceremony
Functions: power display, call function, voice control, support music
Usage: earplug type
Processing customization: Yes