Rechargeable UHF Guitar Bass Wireless System Transmitter Receiver 50M 4 Channels Features: 1. The wireless guitar system uses digital wireless technology to provide excellent audio quality, easy to set up, and extremely reliable for all musicians. UHF 730MHz sound transmission, anti-interference and ultra-short delay, bring you the best music sound. 2. The wireless guitar system can provide a full frequency response from 20Hz to 20kHz, so you need a delay of 4 milliseconds to hear the detailed guitar tone. Low noise and low latency 3. Support 4 groups of devices to work at the same time; and the largest. The transmission range is up to 50 meters. You can on the stage to get a truly effect. 4. Built-in rechargeable lithium battery, the working time of guitar transmitter and receiver can 4 hours, and comes with a USB cable, which can be easily charged to ensure excellent performance in every performance. 5. Plug and play, easy to use; small size, light weight, easy to carry. specification: Colour: Black Material: ABS Item size: 11 * 4.5 * 1.5cm / 4.3 * 1.8 * 0.6 inches Audio response range: 20Hz-20kHz Frequency: UHF 730MHz Transmission range: up to 50M (barrier-free); 30M (through the wall) Transmission delay: less than 4ms Power supply: Built-in 3.7V 600mAh rechargeable lithium battery for charging Port: Micro-USB Weight: 35g / 1.2oz (each type) packing list: 1 * transmitter 1 * Receiver 1 * USB charging cable