Material: ABS+electronic components+ribbon
Battery capacity: 300mah
Power supply method: USB charging
Battery life: 1. The standby time of the receiver/transmitter is about 4 months;
2. The continuous use time is about 30 hours of transmission/reception time
Waterproof level: up to IPX7
Sound level: no level adjustment
Vibration level: 0-99 level adjustment
Electric shock level: 0-99 level adjustment