Professional tuning button, High pitch / Bass / Volume / Accompany / Reverberation all can be adjusted via this microphone.nBluetooth wireless Microphone and speaker 2 in 1, can work independently without extra connection.nMicrophone head has three times noise reduction handle, more efficient to highlight your beautiful voice.n2600mAh Battery for up to 8 hours of Singing, Enjoy KTV Karaoke effects with the Smartphone APP.nHigh compatibility, fit for iOS and Android smartphones, iPad tablet, bluetooth connection.nFeatures: Professional tuning button, High pitch / Bass / Volume / Accompany / Reverberation all can be adjusted via this microphone. Bluetooth wireless Microphone and speaker 2 in 1, can work independently without extra connection. Microphone head has three times noise reduction handle, more efficient to highlight your beautiful voice. 2600mAh Battery for up to 8 hours of Singing, Enjoy KTV Karaoke effects with the Smartphone APP. High compatibility, fit for iOS and Android smartphones, iPad tablet, bluetooth connection. Multipurpose: Bluetooth speaker, Karaoke singing, Car Stereo, instrument recording, interviews, podcasting, etc. Ideal for all vocal applications from singing to speech and usable as bluetooth speakers. Specifications: Pickup: Capacitive Output Power: 3W*2 Frequency Range: 100Hz - 10KHz Maximum SPL: About 115dB 1KHz THD: Up to 1% Reverb Mode: Echo Sound Reverberation Power Supply: Built-in lithium battery Battery Capacity: 2600mAh Charging Power: DC 5V Package Includes: 1 x Microphone 1 x Audio Cable 1 x USB Cable 1 x Storage Box 1 x User Manual