1. Exquisite And Stylish, A Masterpiece Of Sound Quality, True Wireless, True Noise Reduction, High-Quality Noise-Cancelling Lavalier Microphone 2. Take Out The Microphone, Connect The Receiver To The Device, And It Is Ready For Use. It Supports Charging And Use Of The Mobile Phone. 3. Intelligent Noise Reduction, No Fear Of Noise, Press One Button, Everything Will Be Silent And Only The Human Voice Will Be Recorded. 4. Wireless Transmission, Stable Radio Reception, And 2.4g Low-Latency Transmission Synchronization Of Audio And Video Recorded Over Long Distances, Making Transmission Smoother. 5. Full Of Power And Long-Lasting Battery Life Transmission Protocol: 2.4g Transmission Distance: 20-40 Meters (Changes Due To Different Use Environments) Two For Two: Support Headphone Monitoring: Not Supported Noise Reduction: Support Reverb: Support Sound Delay: less than equal20ms Microphone: 360-Degree Omnidirectional Frequency Response: 20hz-20khz Sampling Rate: 44.1khz (Noise Reduction Is 32khz) Signal To Noise Ratio: equal65db Transmitter Operating Current: less than equal15ma Sensitivity: equal35db Transmitter Battery Life: 7h, When Used With The Charging Compartment: 15h Receiver Operating Current: less than equal25ma Transmitter Battery: 80 Mah Charging Compartment Battery: 240 Mah Charging Case Battery Life: The Charging Case Can Charge The Entire Device 1.5 Times Charging Box Input Voltage: Dc4.5-5.2v (Supports Fast Charging Adapter) Adapter: V/1a Transmit Charging Current: 50ma Charging Box Charging Current: 240ma Depending on the batch, the appearance, color, and printing of the product , which does not affect use. Colour:As Shown Material:ABS Package Contents: 1x Lighting Interface Receiver 1x Android Interface Receiver 2x Microphone 1x Charging Compartment 1x Data Cable 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.