UHF wireless audio system with a range of approximately 70 m (line-of-sight) operating in the 638-648 MHz band (6 channels). The transmitter and receiver are powered by 2x AA batteries (not included) with a battery life of approx. 6+ hours, of course easy mounting on camera/DSLR/DSLM/phone (including reduction for flash socket). The package also includes a lapel microphone with 95 cm cable and 3.5mm jack connector, which can also be used with other devices. Transmitting power ≦10 dBm, receiver sensitivity 12 dB/3 uV, signal-to-noise ratio >80 dB. Description:Operation range can reach up to 70m without obstaclReceiving sensitivity:S/N:12Db 3UvNumber of channels:6 ;Transmit power:≦10dBmIdeal for ENG/EFP & DSLR/Camera Audio , delivers the latest in professional-quality audio captureThe microphone with 95cm cable can be used to other equipmentes,like smart phonePackage:1*Transmitter with Metal fixing buckle1*Receiver with Metal fixing buckle1*Boot-type fixing tray of transmitter1*Microphone with 95cm cable 1*Microphone clip1*¢3.5 conneting cable1*ManualNote:This item could be used to most of DSLRS,video cameras with Mic interface and hot shoe mountApplicability:Video recordingRadio noise reductionInterview RadioWireless radioOutdoor video recording radioCompander for High-quality and clear sound, Easy to use, with display. 6 UHF Channels, Operation range can reach up to 70m without obstacle.Powered by 2 AA Batteries(Not Included), More than 6 Hours Continuous Operation. Selectable Mute Function. Camera-Mountable Receiver.Monitoring sound by headphone output(Receiver).Includes Omni-Directional Lavalier Mic, XLR output cable, Stereo mini plug cable.S/N ratio:﹥80dBOperating range:70mTransmitter and receiver power supply:2x1.5v AAlkaline batteryplaytime:≧15hrs