Feature: 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 plastic material sturdy and long service life. 5. Small size and lightweight easy to carry and store convenient to use. Specification: Condition: 100% Item Type: Microphone Material: ABS Plastic Color: Black Input: 2.2-3 V Working Current: 90 mA（Maximum） Working Frequency: 268.85Mhz（Fixed） 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 BatteryNot Included Working Temperature: -10-50℃ Weight: Approx. 198g Package List: 1 x MicrophoneNot Included Battery 1 x USB Receiver 1 x 6.35MM Adapter 1 x 3.5mm Microphone Connecting Cable Note: 1. This VHF wireless microphone does not come with a sound player 2. 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.