Product information:

Product description: USB charging chest strap

Flashing mode: fast flashing/slow flashing/long on/off

Battery model: 180mAh rechargeable lithium-ion battery

Material: mesh fabric + plastic buckle + ABS battery box + D buckle

Color: red, blue, green

Size information:

Size: S/M/L

Packing list:

USB charging chest strap*1