Sample Rate: 48K/24bit lossless digital transmissionTransmission Band: 2.4GHz Frequency: 2.400-2.4835 GHzTransmission Distance: 30 meters outdoors and 15 meters through wallsTransmission Latency: 10msInterface: 6.35mm+Noise: -98dB: less than 0.02%Dynamic Range: more than 105dBFrequency Response: 20-20KHz;+1dB/-3dB Angle: 282Supported Device Groups: 4 at the timeBattery: rechargeable lithium batteries with short-circuit protection. with 1 in 2 out TYPE-C USB charge cableProduct introduction:1. Connector: for transmitter connector, plug it in the guitar or other 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 channel.4. : turn on/off the device.5. Charge indicator:the light is on when being charged and is out when it is fully charged.6. Charge interface:TYPE-CUSB interface.The data cable can charge the transmitter and receiver at the time.colour: blackMaterial: composite materialPackage Contents:1 x Transmitter1 x Receiver1 x 1 in 2 Type-C USB CableOnly the above package content, other products are not included.Note: Light and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.