High Compatibility?Supporting micro TF card max to 32GB(NOT INCLUDED) and song switch. The Bluetooth has a great distance of connection(10 M), which can support Android, iPhone, iPad, iOS and all Smart-phones. Anything and anytime, feel free to contact us via message. Long Playing Time?Built-in 2400mAh rechargeable battery with long lasting. 8-10 hours of continuous usage with a fully charge. Multifunctional Microphone?Multifunctional buttons can adjust the Music, Echo and Volume easily. Wireless mode can be switched into Selfie mode, enables you to take photos. . Two Way Connection?3.5mm audio jack and Bluetooth connection, the wireless karaoke microphones can connect with all Bluetooth devices including Android iOS smart-phones, PC, laptops and APP such as YOUTUBE etc. Particular Design?ShinePick Portable hand-held wireless microphones can be used as microphone, Bluetooth speaker, player, and recorder. Our microphone adopts high technology with 3-layer anti noise filter net, brings you clear reverberation and lowest noise.