Standard: 2.4G digital wireless technology Modulation: GFSK Frequency Band: 2400 ~ 2483 MHz Frequency Response: 20-20 KHz Sampling Rate: 16 K Channel: 6 Display window of receiver: volume and channel Power Supply for transmitter: 5V3A DC Adapter Power Supply for receiver: 2 AA-batteries Certificates: CE/FCC/TELEC Show More