1、Plug and Play: Wireless collar microphone includes transmitters and receivers, which can automatically connect, just insert the receiver into the device, then turn on the transmitter, you can start to use. 2、Noise Reduction: Built in intelligent chip to achieve multi grade noise reduction, especially suitable for long distance audio catch and video recording. 3、Powerful: Wireless lapel microphone charging once a continuous work for about 10 hours, and wireless transmission distance can get to 20m/65.6 feet. 4、Wide Work Scenes: Wireless collar microphone can be used for live broadcast, video recording and other situations you need a mcrophone. 5、Portable: Small size, light weight, easy to carry, editing, and shooting, compatible with the devices with Type C interface. Item Type: Wireless Lavalier Microphone Material: ABS+ Electronic Components Color: As Shown Application: For Live, Outdoor, Mobile Phone Weight: Approx.69g/2.4oz Transmitter Interface: Type-C, For IOS Digital Silicon Wheat: 1 Mic Frequency: 2.4 GHz Transmission Distance: Barrier Free: 20m/21.9yd, Human Body Obstructed Distance: 7m/7.7yd Battery Capacity: 70mA Battery Type: Lithium Battery (Delivery With Built In Battery) Working Hours: 4-6 Hours Charging: 5V/0.5A, 60-90 Minutes Receiver Receiving Distance: 20m Directivity: Omnidirectional Frequency Response Range: 20~20K(Hz) Sensitivity: -46±3dB Working Current: 10mA Full Battery Voltage: 4.1-4.25V Turn On/Off Current: 20mA/10mA SNR: > 64dB Sound Picking Distance: 0.5m/1.6ft Connection: Type-C Connection: Type-C,AUX 3.5mm 1 x Transmitter 1 x Receiver 1 x Charging Cable 1 x Spare Clip 1 x Spare Sponge