Features:High-quality, all-digital, 2.4G audio transmission kit.Transmission distance of 20 meters, without the interference of external signals.Support one transmitter to many receivers.The transmitter with 3.5mm mic, anti-interference button and volume button.Lightweight, small size, rechargeable design, convenient for carry.Transmission distance of 20-30 meters indoor; 80-100 meters outdoor. Unlike analog transmitters, our digital system is not affected by outside signals or phones.Descriptions:Frequency: 2.4G Digital Audio TransferConnections: Straight 1/4″Male Connection. Mic 1/8″ InputEffective Distance: Up to 20-30 Meter (Indoor), Up to 50-80 Meter (Outdoor Controlled)Specifications:Color: BlackTransmitter Dimensions: 65(H)x52(W)x25(D)mmReceiver Dimensions: 92(H)x42(W)X25(D)mmPlug: US Plug/ UK Plug/ EU PlugDynamic Range: >87dBPower: Lithium Rechargeable via USB or 5v DC (Included)Package Include:1 x Transmitter1 x Receiver1 x USB Cable1 x Charger AdapterNotes:Due to the difference between different monitors, the picture may not reflect the actual color of the item. We guarantee the style is the same as shown in the pictures.