Useing advanced 2.4G wireless signal transmission technology with ultra-low latency to ensure that the sound pickup follows the picture in real time Suitable for interviews, vlogs, podcasts, live streaming, video recording, YouTube, TikTok, Instagram, etc Equipped with a 300mAh battery charging bin to charge the microphone, and the digital display screen can show the power in real time, which is very practical and convenient Compatible with cell phones/tablets/laptops with a Type-C port Easy to use, no need to install APP, just plug and play Specification: Microphone: digital microphone Input voltage: 5V Microphone battery capacity: 70mAh Charging bin battery: 300mAh Working time: 6 hours Signal-to-noise ratio: 64DBM adaptive noise reduction Transmission delay: 30MS Sensitivity: -42DB Frequency response range: 20-20KHZ Wireless distance: 15 meters (barrier-free)