Audio Response Range: 20Hz-20kHz
Charge Port: Micro-USB
Item Size: 11 * 4.5 * 1.5cm / 4.3 * 1.8 * 0.6 inch
Color: black
Material: ABS
Power Supply: Built-in 3.7V 600mAh rechargeable lithium battery
Frequency: UHF 730MHz
Transmission Delay: Less Than 4ms
Transmission Range: Max.50M (No obstacle); 30M (through-wall)
Item Weight: 35g / 1.2oz (for each)
Model Number: Transmitter
Origin: Mainland China
Type: Audio Cable