BOYA BY-WM4 2.4GHz Universal Lavalier Wireless Camera Microphone

Overview The BOYA BY-WM4 is a compact wireless microphone with real-time monitor, designed for reliable and trouble-free performance. It can work with Smartphone, Tablet, DSLR camera, Camcorder, Audio recorder, PC and others audio/video devices. Feature Clear recording sound Compatiable with smartphones, DSLR cameras, Consumer Camcorders, PCs etc. Light and compact for easy carrying Omnidirectional lavalier microphone Hard case included Standard camera shoe mount and clip included Up to 25m (82ft) operation range Power Supplied by two AA batterie (not included) Specifications RF Modulation: GFSK (Gauss frequency Shift Keying) Frequency band: 2.4GHz (2405-2478MHz) Frequency response: 35Hz-14KHz±3dB Signal/Noise: 76dB or more Distortion: 0.1% or less (32?,1 KHz,65mW output) RF output level:2 mW Earphone output level: 32?,65mW Reception sensitivity: -85dB +/- 3dB / 0dB=1V/Pa, 1kHz Audio input connector: 3.5mm mini jack Specifications Power requirements: 1.5V DC (One AA size battery) Consumption power: Transmitter: 1.5V/120 mA Receiver: 1.5V/120 mA Battery life: Transmitter: Approx. 3.0 hours Receiver: Approx. 3 hours Dimensions: 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 battery)