🏅 BOYA OFFICIAL STORE 🎙️ 100% Authentic BOYA Products 🛒 The extremely favorable prices will be provided ✈️ Fast Shipping, ship within 24 hours ,We will provide perfect packaging to protect your products 🚚 12 Month Warranty for all orders from order date for any quality issues, product only 🎁🎁 STORE VOUCHER AVAILABLE! 🔊Product Highlights: • Compatible with smartphone, DSLR, consumer camcorders and PCs etc. • Ideal for video, podcast, and mobile journalism applications etc. • 2.4GHz digital transmission technology. • Two Transmitter and one dual-channel Receiver. • Line input jack on transmitter for digital audio input. • Headphone jack on receiver for real-time monitoring. • Up to 60m (197ft) operation range without obstacle. • Powered by two AAA batteries. • Omnidirectional lavalier microphones, zipper bag, standard camera shoe mount and clips included. 🔊The BOYA BY-WM4 Pro K2 is a 2.4GHz wireless microphone system consisting of a belt-pack dual-channel receiver and two belt-pack transmitters, which are compatible with smartphone, DSLR, consumer camcorders, PCs, etc. 🛒Specifications RF Modulation: GFSK (Gauss frequency Shift Keying) Frequency band: 2.4GHz (2405-2478MHz) Frequency response: 35Hz-14KHz±3dB Signal/Noise: 84dB or more Distortion: 0.05% or less (32Ω,1 KHz,65mW output) RF output level: 3mW Earphone output level: 32Ω,65mW Reception sensitivity: -90dB +/- 3dB / 0dB=1V/Pa, 1kHz Audio input connector: 3.5mm mini jack Operation range: 60m (197ft) (without obstacle) Power requirements: 3V DC (Two AAA size batteries) Consumption power: Transmitter: 3V/70mA Receiver: 3V/70mA Dimensions: Receiver: 45x70x35mm (1.8*2.8*1.4 inches) Transmitter: 45x70x35mm (1.8*2.8*1.4 inches) Weight: Receiver: 47g (1.7 oz) Transmitter: 47g (1.7 oz)