Product Description: This product is a True Wireless Microphone featuring a built-in upgrade chip that enables clear sound transmission, akin to 4K picture quality. It is designed with a built-in microphone, eliminating the need for an external one. The microphone is compatible with a wide range of devices, including mobile phones and cameras. It comes with an inbuilt lithium battery, promising long battery life. It uses a USB charging interface, taking away any concerns about charging issues. Adopting 2.4G transmission technology, it guarantees stable and continuous frequency transmission over a rage of 40 meters. The transmission frequency band ranges from 2400MHz to 2483.5MHz, with a transmitting power of 10dBm and a receiving sensitivity of -86dBm. Designed as omnidirectional, it offers an audio frequency response of 100Hz to 20KHz3dB, a dynamic range of 90dB, a signal to noise ratio of 97dB, and a maximum input sound pressure of 97dB SPL. The microphone comes in black and is made of high-quality, sturdy ABS material. It measures 5 x 4.4 x 1.4cm. Please note: Due to light shooting and varied displays, the color of the item in the picture may slightly differ from the actual product. The allowable measurement error is +/- 1-3cm. The package includes one microphone. No other products are included. Product Images: