Features 1.VHF universal wireless microphone, suitable for singing and speech, plug and play. 2.USB receiver support a variety of devices, wide range applications, as long as the USB port and microphone interface devices can be connected to use. 3.Strong anti?interference ability, stable signal and long distance reception, no strong interference in the case of receiving distance of 50 meters. 4.Made of high quality plastic material, sturdy, durable and long service life. 5.Small size and lightweight, easy to carry and store, convenient to use. specificationCondition: New Item Type: Microphone Material: ABS Plastic Color: Black Input: 2.2-3 V Working Current: 90 mAMaximum Working Frequency: 268.85MhzFixed Sensitivity: -50 +/- 3dB Total Harmonic Distortion: Under 0.7 Signal to Noise Ratio: Over 110 db Delay Time: Less Than 5 Millisecond Frequency Response: 50 Hz-18 kHz Power Supply: 2 x AA Battery(Not Included) Working Temperature: -10-50 Weight: Approx. 198g PackageList1 x Microphone(Not Included Battery)1 x USB Receiver1 x 6.35MM Adapter1 x 3.5mm Microphone Connecting Cable Note1.Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering. 2.The product only supports speakers, amplifiers, and amplifiers with 3.5mm or 6.5mmMIC microphone interfaces. At the same time, USB interfaces are required to supply power to the devices. This VHF wireless microphone is not equipped with a sound player.