Microphone Handheld Microphone USB Port for Karaoke 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 degrees Celsius 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.