Boya BY-W4 4-Channel Wireless Lavalier Microphone 2.4g Mini Recording Mic with 1 Receiver for DSLR Camera Laptop Smartphones Interview

Compact and lightweight the BY-W4 weighs less than 13g and can be clipped to clothing or placed on a desk 2.4GHz wireless transmission technology low latency more stable signal transmission The transmitter can work continuously for 7 hours after being fully charged Equipped with a one-button mute multi-level gain adjustment function With 4 transmitters can satisfy 4 people recording at the same time Applicable to various scenarios such as live broadcasts vlogs news interviews etc. Compatible with various recording devices such as cameras mobile phones and tablets Specifications: BY-W4TX Transmission method: 2.4GHz ISM Signal Modulation: Gaussian Frequency Shift Keying Polar pattern: omnidirectional Operating range obstacle-free: up to 30m RF output power: <10m - W Frequency Response: 50Hz-16k - Hz Signal-to-noise ratio: >78d – B Sensitivity: -42d – B Built-in lithium battery specification: 3.7V/110m – Ah Charging interface: Type-C Charging time: about 2 hours Battery life: about 7 hours Weight: about 12.5g Size: 17.75910mm BY-W4 RX Transmission method: 2.4GHz ISM Signal Modulation: Gaussian Frequency Shift Keying Operating distance obstacle-free: up to 30m RF output power: <10m - W Audio output interface: 3.5mm TRRS output hole Built-in lithium battery specification: 3.7V/200m - Ah Charging interface: Type-C Charging time: about 2 hours Battery life: about 7 hours Weight: about 18g Size: 20.26512.8mm