1.2.4G Wireless Microphone . 2.Cardioid pattern reduces pickup of sounds from the sides and rear, improving isolation of desired .Adopt high sensitivity pickup.Provides loud, clear, high-fidelity sound. 3. with a 3.5mm(1/8inch) to 6.35mm(1/4inch) Adapter Plug and a Y-shaped Phone Adapter. It can work compatible with many devices like voice amplifier, speaker system, smart phone(Not Supported IOS- and ), PC, camera and more. Great for teaching lectures, conference speech, visiting guide, audio/video recording, live broadcasting and so on. 4.For Video and Video Recording Microphone for smartphone/camera video recording and recording. Connect to the camera: Connect the microphone's receiver directly to the camera's MIC input jack.A Y-adapter (included) is required to record video using previous versions of for Android smartphones (for 5, 5s, 6). For (7, 8, X, etc.) recording, customers need to purchase an external USB adapter and a USB audio stereo sound adapter(Not included). 5.Easy Charging - Built-in rechargeable 400mAh batteries, the transmitter and receiver can be simultaneously using the dual micro-USB charging cable, can be by power bank or PC USB interface, more convenient. Has a working time of 4-5 hours on a normal 1.5 hours full charge. Function:conference,lectures,teaching equipment,cell phone/camera recording,web podcast live, audio/video recording, professional audio equipment, , outdoor scene, yoga instructor, voice amplifier, dance instructor, promotion, games, etc. Colour:Black Material:ABS Package Contents: 1 set x Wireless Headset Microphone (Different batches have different colors and styles of accessories, and specified colors and styles are not accepted) Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.