* Present 48K/24bit professional audio quality with 2.4GHz transmission band, low latency, lossless digital transmission and-interference performance. * Inbuilt 4 channels can be easily switched by one-click. 4 different colors of LEDs make it more convenient to identify and operate. * 4 different groups of devices can be used at the same time after connected to different channels. One can transmit signal to multiple receivers. * Achieve 30m outdoor transmission distance and 15m through-wall transmission, completely getting rid of the shackles of cables. * Reable 650mAh battery, offers up to 5 hours high-energy endurance to make sure seamless signal transmission. -end charging cable can both the and receiver simultaneously with short-circuit protection. Specifications: Model: WS-1 Color: Black / Silver (Optional) Material: Plastic+ABS Battery Capacity: 3.7 / 650mAh Sample Rate: 48K / 24bit Lossless Digital Transmission Transmission Band: 2.4GHz ISM Frequency Band Transmission Distance: 30m for outdoor transmission, 15m for through-wall transmission Transmission Latency: 10ms SNR: -98dB THD: 0.02% Dynamic : 105dB Frequency Response: 20-20KHz, +1dB / -3dB Rotation Angle: 282 º Folded Size: 8.2 * 4 * 3cm Unfolded Size: 13.5 * 4 * 3cm Item Weight: 88g Package Size: 15 * 10.8 * 4cm Package Weight: 150g Package List: 1 * 1 * Receiver 1 * -end Charging Cable 1 * User Manual