Double pickup system RX winding technology, wireless transmission within 50 meters of pick-up a built-in launchers, and equipped with a wireless Receiver, Receiver carrying imported microphones, volume independent regulation; Support skills such as playing board, AM and PM, racket string sound pickup carrying BK9521/9524 listed companies in Shanghai broadcom wireless solution, make the time delay is less than 3 ms; Rechargeable large capacity battery, bring the USB charging system, life work 200 hours continuously.