BOYA BY-WM4 PRO-K3 2.4 GHz Wireless Microphone System for Lightning iOS Devices, Dual-Channel Receiver, Headphone Monitoring, 197 ft Range

BOYA BY-WM4 PRO-K3 is a 2.4 GHz wireless microphone system made for Lightning iOS devices. This variant includes one TX4 Pro body-pack transmitter and one BY-WM4 PRO RXD wireless receiver with a Lightning connector, creating a compact setup for mobile recording on compatible iPhones and other Lightning-based iOS devices.

The dual-channel receiver features an ultracompact, miniature-size design that connects directly to the device, helping keep your recording kit streamlined for handheld and on-the-go use. A 3.5 mm headphone output on the receiver supports real-time sound monitoring, while master volume control helps adjust audio levels during recording. The system also supports selectable stereo and mono mode for the BY-WM4 PRO RXD receiver.

Designed for content creation and mobile production, this microphone system is suitable for YouTube videos, vlogging, Facebook content, podcasts, and mobile journalism. The omnidirectional lavalier microphone captures clear sound, and the digital 2.4 GHz frequency band is built for stable wireless performance with an operating range of up to 197 ft (60 m) without obstacles.

The transmitter uses two AAA batteries for 3V DC power, while the BY-WM4 PRO RXD receiver is powered directly by the connected iOS device through its Apple MFi Certified Lightning connector. The transmitter measures 1.8 x 2.8 x 1.4 in. (45 x 70 x 35 mm), and the receiver measures 3.2 x 1.2 x 0.5 in. (82 x 30.7 x 12 mm). The transmitter weighs 1.7 oz (47 g), and the receiver weighs 0.4 oz (12 g). Package dimensions are 6.9 x 4.7 x 2.1 in.