Wireless mitter and receiver set designed for electronic music inst ents like guitar, bass, etc.2.4GH uncompressed wireless signal mission, low noise and latency.Built-in rechargeable battery, long working hours, and comes with USB cable for convenient recharging.270 degree rotatable 1/4 inch plug, available for inst ents with input jack in different positions.Supports 4 sets of devices working at same time, The maximum mission range can reach 50 meters. Audio response range: 20Hz-20kHzFrequency: 2.400GHz-2.483GHz mission range: max.50m (barrier-free); 30m (through walls) mission delay: less than 12.5msPower supply: Built-in 3.7V 600mah rechargeable lithium batteryCharging time: 2 hoursContinuous use time: 4-6 hoursCharging port: micro-USBsize:116 x 43 x 17mmMaterial:ABScolour:black Package Contents:1 x mitter1 x Receiver1 x USB Charging Cable1 x User Manual Only the above package content, other products are not included.Note: Light shooting 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.