Boya BY-WM4 Mark II Wireless Microphone System Lavalier Lapel Mic Transmitter Receiver for Canon Nikon Sony DSLR Camcord

Specifications:RF Modulation: GFSK (Gauss frequency Shift Keying)Frequency band: 2.4GHz (2405-2478MHz)Frequency response: 35Hz-14KHz3dBSignal/Noise: 76dB or moreDistortion: 0.1% or less (32,1 KHz,65mW output)RF output level:2 mWEarphone output level: 32,65mWReception sensitivity: -85dB +/- 3dB / 0dB=1V/Pa, 1kHzAudio input connector: 3.5mm mini jackOperation range: 25m (80ft.)Power requirements: 1.5V DC (One AA size battery)Consumption power: Transmitter: 1.5V/120 mAReceiver:1.5V/120 mABattery life: Transmitter: Approx. 3.0 hoursReceiver: Approx. 3 hoursDimensions:Transmitter: 60mm x 86mm x28mm (W/H/D)(2.36 x 3.3 x 1.1 inches)Receiver:60mm x 86mm x41mm (W/H/D)(2.36 x 3.3 x 1.61 inches)Weight:Transmitter: 136g (4.37oz) (Without battery)Receiver:152g (4.89oz) (Without batteryPackage Included:1 x Transmitter1 x Receiver1 x Lavalier/lapel microphone1 x 3.5mm to TRS audio output cable1 x 3.5mm to TRRS audio output cable1 x Cold-shoe mount1 x Hard case1 x User GuideFeatures:Clear recording soundCompatiable with smartphones, DSLR camerasConsumer Camcorders, PCs etc.Light and compact for easy carryingOmnidirectional lavalier microphoneEasy to useHard case includedstandard camera shoe mount and clip includedUp to 25m (82ft) operation rangePower Supplied by two AA batteries(not included)