- Microphone - Universal - UHF Guitar Transmitter + Receiver Built-in Rechargeable Battery Highlights Universal UHF Guitar Transmitter + Receiver Built-in Rechargeable Battery UHF Guitar Wireless System Transmitter + Receiver Built-in Rechargeable Battery Product is shipped based on color or the size of the main product page image. Specifications: Type: Guitar Wireless System Transceiver Audio Receiver Audio Response: 20Hz-20kHz transmission range: max.50m (reachable); 30m transmission delay (per wall): less than 4ms Power: charging delay 3.7v 600mAh rechargeable lithium battery: 2 hours Continuous use time: 6 hours Charging port: Micro USB Package Included: 1x Wireless Guitar Transmitter 1x Wireless Guitar Receiver 1x User Manual 1x USB Cable