Feature:1. VHF universal wireless microphone in hand, karaoke speech, plug and play, wider frequency range, less interference, easily perfect display your voice.2. Adopts strict control of electronic circuit, rich and full sound can captured from source directly in front of the microphone.3. For all activities such as karaoke, live performances, meetings, churches, schools, auditoriums, parties, etc.4. USB receiver supports a variety of devices, wide device support applications, device with USB port and microphone interface, can connected to use.5. Stable signal remote reception, constant frequency within 50m without noise, strong antiinterference capacity, wireless receiver with receive range of 50m(without strong interference)Specification:Condition: 100% Brand NewItem Type: MicrophoneModel: V16UMaterial: ABSColor: BlackInput2.2-3 VWorking Current90 mAMaximumWorking Frequency268.85MhzFixedSensitivity-50 +/- 3dBTotal Harmonic Distortion: <0.7SNR>110 dbDelay Time: < 5msFrequency Response: 50 Hz~18 kHzPower Supply: Each Microphone Need 2 x AA Battery(Not Included)Working Temperature: -10-50Weight: Approx. 345g.Package List:2 x Microphone(Not Included Battery)1 x USB Receiver1 x Audio Cable1 x AdapterNote:It cannot be used directly for PC or laptop.