boya wm4 wireless microphone-Designed for videographers on a limited budget and video hobbyists, Boya Wireless Microphone
BY-WM4 Pro-K1：consists of one compact body-pack transmitter (TX4 Pro), a portable receiver(RX4 Pro),a Lavalier/lapel microphone, an omnidirectional lavalier microphone, a 3.5mm TRRS audio cable and a 3.5mm TRS audio cable.
BY-WM4 Pro-K2：consists of two compact body-pack transmitters (TX4 Pro), a portable receiver(RX4 Pro), a Lavalier/lapel microphone, two pieces of omnidirectional lavalier microphones, a 3.5mm TRRS audio cable and a 3.5mm TRS audio cable.
BY-WM4 PRO-K3：designed for Lightning iOS devices. It comes with a body-pack transmitter (TX4 Pro)and a miniature receiver with a Lightning connector (BY-WM4 PRO RXD), one omnidirectional lavalier microphone.
BY-WM4 PRO-K4：designed for Lightning iOS devices, comes with two body-pack transmitters (TX4 Pro)and a miniature receiver with a Lightning connector (BY-WM4 PRO RXD), and two omnidirectional lavalier microphones.
BY-WM4 PRO-K5： is for easily using for Android and other Type-C devices，consists of a body-pack transmitter (TX4 Pro) and a miniature receiver with a Type-c connector (BY-WM4 PRO RXU),one omnidirectional lavalier microphone.
BY-WM4 PRO-K6：is for easily using for your Android and other Type-C devices. consists of two body-pack transmitters (TX4 Pro) and a miniature receiver with a Type-c connector (BY-WM4 PRO RXU), two omnidirectional lavalier microphones.
BY-WM4 PRO-RXD: Wireless Receiver For iOS devices
it’s ideal for YouTubers, vloggers, mobile journalists to iPad, iPhone,iPod touch.Dual-channel and the plug-and-play design, it can work with two two body-pack transmitters (TX4 Pro), under no matter indoor or outdoor situations.
BY-WM4 PRO RXU: Wireless Receiver For Android and other Type-C devices
Ultracompact dual-channel digital plug-in 2.4GHz Wireless receiver is for easily using with two body-pack transmitters (TX4 Pro) to your Android and other Type-C devices.
- 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) |