Description: Wireless Audio Transmission System Receiver USB Rechargeable Transmitter for Electric Guitar Bass Violin Feature: 1. Wireless transmitter & receiver set for electroacoustic musical instruments like guitar, bass, etc. 2. Supports 5 sets of devices working at same time, one-to-one; and max. transmission range is up to 50 meters. 3. Ultra high frequency 730mhz acoustic transmission, anti-interference, ultra short time delay. 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: Audio Response Range: 20Hz-20kHz Frequency: UHF 730MHz Transmission Range: Max.50m/164ft (No obstacle); 30m/98.4ft (through-wall) Transmission Delay: Less Than 4ms Power Supply: Built-in 3.7V 600mAh rechargeable lithium battery Charge Port: Micro USB Charging time: 2h Continuous use time: 6h Net weight: 130g Size: 110x45x15mm/4.33*1.77*0.59'' Included: 1 x Transmitter 1 x Receiver 1 x USB Cable 1 x Chinese English User Manual Note: Please allow 1-3mm differs due to manual measurement. Due to the different display and different light, the picture may not show the actual color of the item. Thanks for your understanding.