No need to install drivers, plug and play, sound is transmitted synchronously immediately after connection Three preset sound effects,professional quality, three sound effects, one-button switch, simple and practical Various combination functions,Humanized design, one-touch switching, suitable for both the elderly and children 30mm dynamic microphone head, no distortion when recording songs, no noise when sounding, accurate and sensitive, professional-level singing enjoyment. Battery capacity:2600mAh Microphone type:dynamic microphone Bluetooth solution:5.0 Speaker diameter:58mm Speaker X2 Speaker power:2x5W Charging input:DC5V/1A The product appearance and printed words may vary depending on the batch, but this does not affect use Colour:Silver&Gray Material:Metal Package Contents: 1 x microphone 2 x cables 1 x storage bag 1 x Chinese and English instruction manual Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.