1、Wireless transmitter and receiver set for electroacoustic musical instruments like guitar, bass, etc. 2、UHF 730MHz sound transmission, anti-interface and ultra-short delay, giving you the perfect music sound. 3、Foldable body, more convenient for using and bringing. 4、Built-in rechargeable lithium battery, long working hours, and comes with USB cable for convenient charging. 5、Plug and play, simple to use. Compact size and lightweight, easy to carry. Wireless transmitter and receiver can be used for electroacoustic instruments such as guitar, bass, violin and so on. Features: Wireless transmitter and receiver set for electroacoustic musical instruments like guitar, bass, etc. UHF 730MHz sound transmission, anti-interface and ultra-short delay, giving you the perfect music sound. Foldable body, more convenient for using and bringing. 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: Color: black, blue (optional) Frequency range: 2.4GHz-2.483GHz Frequency bandwidth: 20Hz-20kHz Transmission range: 30M Transmission delay: less than 12ms Transmitter battery: 1 * 3.7V 600mAh rechargeable lithium battery Receiver battery: 1 * 3.7V 600mAh rechargeable lithium battery Charge port: micro USB Item size: 133 * 40 * 25mm / 5.2 * 1.6 * 1.0in Item weight: 39g / 1.3ounce Package size: 173 * 106 * 52mm / 6.8 * 4.2 * 2.0in Package weight: 260g / 9.1ounce Packing List: 1 * Transmitter 1 * Receiver 1 * Charge Cable 1 * Transmitter 1 * Receiver 1 * Charge Cable