Product information:
Color: blue and white-classic square Bluetooth, pure black-classic square Bluetooth, white-second generation sleep artifact support TF memory card, black-second generation sleep artifact support TF memory card
Transmission range: 10 meters
Chip type: Jerry
Battery life: more than 8 hours
Function: ultra-long life battery battery
Material: Plastic
Usage: hanging neck
Style: Creative Design
Volume: length 15.5cm * width 3.6cm * height 1.2cm
Charging method: USB
