1、Multi‑purpose, convenient and practical. Suitable for video shooting, online celebrity eating and live broadcast, program interviews, conference speech interview recording, recording teaching courses, etc. 2、Universal 3.5mm interface, intelligent compatibility with multiple devices, compatible for IOS system, for Android system, SLR cameras, camcorders, handheld DV, for Gopro and other devices. 3、Selected high‑quality cables, high‑density silicone protection, to maintain stable signal transmission, continuous frequency 6 meters/19.7ft long, suitable for long‑distance recording environment. 4、Built‑in audio chip with audio gain control, high‑fidelity output, effectively reduce current sound, filter noise and maintain high‑quality sound output. 5、High‑density anti‑spray sponge + comfortable clip, make your voice clearer, warmer and firmer, humanized and comfortable collar clip, free your hands from now on. 6、The receiver supports synchronous monitoring, and it is always aware of the recording situation to facilitate timely adjustments. Item Type: Lavalier Microphone Material: Alloy + Plastic Color: As Pictures Shown Cable Length: Approx. 6m/19.7ft Weight: Approx. 115g/4.1ozModel: BY-M1 Pro Type: Single mic Frequency response :70Hz-18KHz Direction: Omnidirectional SNR: ≥78dB Sensitivity: -30dB± 3dB (0dB=1V/ Pa.1kHz) Audio output interface: 3.5mm Battery: button battery LR44 140mAh How to use: 1. Open the battery compartment, remove the insulating film, and close the battery compartment 2. Turn on the power switch 3. Insert the 3.5mm connector into the camera 1 x Microphone 1 x Windproof Cover 1 x Adapter 1 x Storage Bag 1 x Clip 1 x Manual