Description: The wireless microphone with high signal stability, low interference and short audio delay Precise pickup technology makes sound louder and high fidelity technology reverts to your real sound. Mini clips make it easy to clip and hide on your collar, tie or lapel, small and portable. Turn on the transmitter and receiver simultaneously and wait 2 seconds, they will connect automatically within 3meters Rechargeable: The wireless transmitter & receiver can be charged simultaneously with the USB cabl Specification: Microphone type: Uni-Directional (Cardioid) Condenser microphone. Power supply: Polymer lithium-ion battery-(500- 800 mAh). Usage time: About 1 to 3 hours. Frequency reaponse: 60Hz-15KHz Wireless range: 65-115 feet 20-30 M (in the wide place). Charging Mode: USB charging. Size Chart: 7x2.7cm/2.76x1.06inch Package Includes: 1 Piece Transmitter 1 Piece Receiver 1 Piece Charging Cable 1 Piece Instructions Note: Please allow slightly 0-1cm difference due to manual measurement. Colors can appear different depending on light and how the listing is viewed. Thanks for your understanding and attention. Wish you a pleasant shopping experience!