Utilizes ultra-high frequency 700Hz original sound transmission for anti-interference and ultra-short latency. Supports simultaneous use of 5 devices with a maximum transmission range of up to 30 meters. Built-in rechargeable lithium battery provides long operating time and includes a universal Android USB cable for convenient charging. Plug-and-play design makes it simple to use, small in size, , and easy to carry. Frequency range of 620-700MHz with a transmission latency of less than 5ms. This product is designed for seamless audio transmission, ensuring high-quality sound with minimal delay. The built-in rechargeable battery allows for extended use, making it ideal for musicians and audio professionals . Its compact design and ease of use a perfect choice for various applications, from live performances to practice sessions. The universal compatibility with Android devices adds to its versatility, ensuring you can connect effortlessly. Color: Blue Material: ABS Package Contents: 1*Receiver 1*Transmitter 1*Charging 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.