Boya By-wfm12 Vhf 12 Channel Wireless Microphone SpecificationBasicOperation Frequencies: 204-215MHZ Modulation Frequency: DQPSK Channels: 12TransmitterModulation Sensitivity: 6 mVinput for full deviation Battery: LR6/AA size alkaline battery(not included) Current Consumption: 160 mA Dimensions: 102×62.0×44.7mm(4.0"×2.4"×1.8") Antenna Length: 142mm(5.6") Weight: 80g(2.8 oz)without batteryReceiverReception Sensitivity: 2μV for 30dB S/N Output Connector: 3.5mm(1/8")TRS Battery: LR6/AA size alkaline battery(not included) Current Consumption: 140mA Dimensions: 102×62.0×44.7mm(4.0"×2.4"×1.8")Antenna length: 142mm(5.6")Weight: 80g(2.8 oz)without batteryKey Features:• Compatible for Smartphone, Tablet, DSLR, Camcorder, Audio Recorder, PC, etc.• 12 switchable channels to keep you free from interference• high-band VHF operation for superior sound• Two MIC jacks for the transmitter• Automatically matched for Receiver• Volume control wheel• Detachable and flexible antenna with rotating 360° function• Operation range up to 40m (131 feet) away without obstacles.• Compact and easy to use• Powered by two AA-size alkaline batteries for both Receiver and TransmitterBoya By-wfm12 Vhf 12 Channel Wireless MicrophoneThe BOYA BY-WFM12 may be a 12-Channel VHF Wireless Microphone System, capturing audio with smartphones, DSLRs, camcorders, audio recorders, PCs, and more. this technique is right for interviews, film making, and business presentations,or other applications that need portability. Each transmitter has two MIC socket, it allows to use two microphones at an equivalent time.Both the receiver and transmitter are lightweight and straightforward to use, offering flexibility without sacrificing high-quality audio.while operating at a variety of up to 40m (131 feet) away without obstacles...