A9 2.4GHz Wireless Rechargeable Guitar Transceiver System Accessories Specifications: Wireless transmitter and receiver kit designed for electronic musical instruments, such as guitar, bass, etc. 2.4G uncompressed wireless signal transmission, low noise and latency. Built-in rechargeable battery, long working hours and USB cable for convenient charging. 280 degree rotatable 1/4 inch plug, available for instruments with input jack in various positions. It supports 6 sets of devices working at the same time, one-to-one and without interference. Item Name: Transmitter + Receiver Material: Plastic Frequency Range: UHF Frequency Band: 20Hz-20kHz Transmission Delay: lt; 4 Seconds Charger Interface: Micro USB Charging Time: 2 hours Use Time: 6 hours Battery: Built-in rechargeable battery (included) Size: 11cm x 4.3cm x 1.7cm/4.33" x 1.69" x 0.67" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Included: 1 x Transmitter 1 x Receiver 1 x USB Cable