Product information:
Color: [digital display] yellow, [digital display] Black, [digital display] White, [digital display] Gray
Transmission range: 15 meters
Channel: Stereo
Chip type: Jerry
Applicable gift-giving occasions: Festivals, advertising promotions, employee benefits, anniversary celebrations, business gifts, opening ceremonies
Battery life: 8
Function: power display, call function, support music
Usage: earplug
