Frequency response: 35Hz-14KHz±3dB, Receiver Weight: 12g/ 0.4oz, Transmitter Power requirement: 2x AAA battery(not included), Reception sensitivity: -90dB+/- 3dB / 0dB=1V/Pa / 1KHz, Consumption power: Transmitter: 3V/70mA, Operation range: 60m (197 ft)(without obstacle), Transmitter Weight: 47g/ 1.7oz(without battery), Audio input connector: 3.5mm mini jack, Earphone output level: 32hom / 65mW, Receiver: 3V/70mA, RF Modulation: GFSK (Gauss Frequency Shift Keying), Transmitter Size: 4.5x 7x 3.5cm/ 1.8x 2.8x 1.4in, FR output level: 3mW, Distortion: 0.05% or less (32ohm / 1 KHz / 65 mW output), Frequency band: 2.4G (2405-2478MHz), , Signal/Noise: 84dB or more.
Aliexpress
There’re some similar (or not) items on Aliexpress
You can use link bot to get even lower price:
Click here to search by yourself. Here are coupons that you can use.
Updated: 08-08-2025
Banggood
Warehouse in China.
Link: BOYA BY-WM4 PRO K3 2.4G Condenser Wireless Microphone
$158.68 with coupon: hoNEYbGdeAlS
Additional Banggood coupons:
1. First page
2. Second page
Price history and price alert
There is only one database record (it was for $112.99), so you can’t see price history chart.
You can set price alert (for Banggood and Aliexpress (only if product name will be the same as on Banggood and I will post it on social media though, so it’s more like Banggood price alert)).