UHF Wireless Guitar Transmitter Receiver System Built-in Rechargeable Battery 50M Transmission Range for Electric Guitar Bass Features: Wireless transmitter & receiver set for electroacoustic musical instruments like guitar, bass, etc. UHF 730MHz original sound transmission, anti-interface and ultra-short delay, giving you the best music sound. Supports 4 sets of devices working at same time, one-to-one; and max. transmission range is up to 50 meters. Built-in rechargeable lithium battery, long working hours; and comes with USB cable for convenient charging. Plug and play, simple to use; compact size and lightweight, easy to carry. Specifications: Audio Response Range: 20Hz-20kHz Frequency: UHF730MHz Transmission Range: Max.50M (No obstacle); 30M (through-wall) Transmission Delay: Less Than 4ms Power Supply: Built-in 3.7V 600mAh rechargeable lithium battery Charge Port: Micro USB Item Size: 11 * 4.5 * 1.5cm Item Weight: 35g (for each) Package Size: 17.5 * 10.5 * 5cm Package Weight: 250g Package List: 1 * Transmitter 1 * Receiver 1 * User Manual 1 * USB Charging Cable Condition: New Brand: A8