Sample Rate: 48K/24bit lossless digital transmission Transmission Band: 2.4GHz Frequency: 2.400-2.4835 GHz Transmission Distance: 30 meters outdoors and 15 meters through walls Transmission Latency: 10ms Interface: 6.35mm +Noise: -98dB : less than 0.02% Dynamic Range: more than 105dB Frequency Response: 20-20KHz;+1dB/-3dB Rotation Angle: 282 Supported Device Groups: 4 at the same time Battery: rechargeable lithium batteries with short-circuit protection. with 1 in 2 out TYPE-C USB charge cable Product introduction: 1. Connector: for transmitter connector, plug it in the guitar or other musical instruments. for receiver connector, plug it in the speaker. 2. Channelindicator: the light indicates the working channel. 3. Channel switch button: press to switch channel. The transmitter and receiver should be in the same channel. 4. Power: turn on/off the device. 5. Charge indicator:the light is on when being and is out when it is fully . 6. Charge interface:TYPE-CUSB interface.The data cable can charge the transmitter and receiver at the same time. colour: black Material: composite material Package Contents: 1 x Transmitter 1 x Receiver 1 x 1 in 2 Type-C USB Cable Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.