Feature: 1. Wireless transmitter \u0026 receiver set for electroacoustic musical instruments like electric guitar, bass, etc. 2. UHF sound transmission, anti-interface and ultra-short delay, giving you the best music sound. 3. Supports 4 sets of devices working at same time, one-to-one; and max. transmission range is up to 10 meters. 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. Specification: Features: Wireless transmitter & receiver set for electroacoustic musical instruments like electric guitar, bass, etc. UHF 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 10 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: UHF Transmission Range: Max.10M (No obstacle) 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 / 4.3 * 1.8 * 0.6in Item Weight: 30g / 1.1oz (for each) Package Size: 21 * 11 * 3cm/ 8.3 * 4.3 * 1.2in Package Weight: 135g/ 4.8oz Note: The guitar and guitar amplifier showed in the picture are not included. Package List: 1 * Transmitter 1 * Receiver 1 * User Manual 1 * USB Charging Cable Package List: 1 * Transmitter 1 * Receiver 1 * User Manual 1 * USB Charging Cable