Description Origin : CN(Origin) Product: Guitar Wireless Transmitter Receiver Color: Black. Material: ABS. Audio Response Range: 20Hz-20kHz. Frequency: UHF 730MHz. 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 / 4.3 * 1.8 * 0.6 inch. 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. Feature: 1. Wireless transmitter receiver set for electroacoustic musical instruments like guitar bass etc. 2. UHF 730MHz original 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 50 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.