Portable: The microphone is small, light weight, easy to carry and move, suitable for outdoor use and mobile device connection. Wireless connection: The microphone uses wireless Bluetooth technology, which is more flexible and convenient. Clear sound quality: These microphones usually have high sensitivity and are able to clearly capture sound details, providing a high-quality audio signal. Battery life: Built-in rechargeable battery, easy to use for a long time, no need to change the battery frequently. Date First Available March 16, 2022