BOYA PRO K2 Wireless Microphone for Transmitters 1 BY-WM4 BY-WM4 TRS/TRRS Cameras/Smartphones (2 + Receiver)

--------------------------------------------------- 【Voltage Compatibility】 Our products are selected to support international voltage ranges (e.g. 100–240V). However, please make sure your local voltage is compatible before use, as incorrect voltage may still cause malfunction.

【Plug Type】 Our products use Japanese plug types (A or B type). Please use a conversion adapter if necessary.

【Important Note on Transformers and Adapters】 A transformer adjusts voltage to match your device’s requirements. A conversion adapter only changes the plug shape and does not adjust voltage. Using only a conversion adapter without a transformer may result in damage to the product.

【Liability】 We are not responsible for malfunctions or damages caused by improper use, such as operating the product without appropriate voltage or equipment. --------------------------------------------------- ●RF modulation: GFSK (Gaussian frequency shift keying) ●Frequency band: 2.4GHz (2405-2478MHz) ●Frequency response: 35Hz-14kHz ±3dB ●Signal-to-noise ratio: 84dB or more ●Distortion: 0.05% or less (32Ω, 1kHz, 65mW output) ●RF output level: 3mW ●Earphone output level: 32Ω, 65mW ●Receiving sensitivity: -90dB +/- 3dB /0dB=1V/Pa, 1kHz ●Audio input: 3.5mm mini jack ●Operating range: Approximately 60m (without obstacles) ●Power supply: DC3V (equivalent to two AAA batteries) ●Power consumption: 3V/70mA (Rx/Tx each unit) ●Dimensions (Tx and Rx both): 45x70x23(mm) *excluding clip and shoe ●Weight (Tx and Rx both): 33g *excluding clip, shoe and batteries