Output Volume Adjustment: -64dB~0dB (0.5dB step)
Operating Frequency Band: 5.8 GHz
Operation Length: < 100 feet (30m) outdoor unobstructed, < 33 feet (10m) outdoor with obstructions
Sampling Rate: 24bit / 40 kHz
Frequency Response: 20~19kHz
Built-in Battery Capacity (TX & RX): 450mAh / 3.7V
Battery Running Time: > 4 hours
Battery Charging Time: around 1.5 hours
Power Consumption: TX <90mA,RX < 45mA
Maximum Input Level: 7.6Vpp (8.6dBV or 2.7Vrms)
RX Suggestion Phone Impedance: 16~32Ω
Maximum Output Power: 57mWrms (RLOAD =16Ω, 1 kHz)