The Boya WM4 Pro-K5 is an affordable transmitter set for recording audio during presentations, interviews, and conversations with your Android smartphone. The WM4 Pro's transmitter and receiver are very compact and connect to each other on the 2.4 GHz frequency. You simply connect the receiver to your Android smartphone using the USB-C port. You don't need a cable, as the BY-WM4 Pro-K5 receiver connects directly to your smartphone. The receiver also works with most other devices with a USB-C port, such as tablets and laptops.

• Affordable transmitter set for sound recording with Android smartphone
• Compact transmitter and receiver
• Connection on 2.4 GHz frequency
• Receiver connects directly to smartphone's USB-C port
• Works with other devices with USB-C port

The WM4 Pro is the successor to the WM4 and features a higher signal-to-noise ratio, so you hear less background noise. The WM4 Pro is also more compact than the WM4.

If you're looking for a basic transmitter set for easily recording voices with your Android smartphone, the WM4 Pro-K5 is a good choice. You can optionally adjust the volume with the + and – buttons. No further configuration is required, and you can get started right away. The included windshield reduces wind noise. The clip allows you to attach the microphone capsule to clothing. The range between the transmitter and receiver is up to 60 meters.