Features:  The latest upgraded version of the WS858 microphone, perfect sound quality, add cool lights.  Built-In Bluetooth Speaker can connect to any Bluetooth enabled source ( Smartphone, iPhone, iPad, Tablet, Car, PC, and more ) Three-layer automatic noise reduction design, restore real sound, karaoke level experience.  Multi-function adjustment panel, rich and varied functions.  Product material:ABS material aluminum alloy.  Product size:height 250mm speaker 70 x 70 x 65mm (approx.).  Weight:420g (approx.).  Output power:10mw headphone output 5w speaker output.  Comfortable charging:DC5V.  Charging Time:3~5 Hours.  Maximum sound pressure level:>115db 1khz THD<1%.  Reverb mode:echo is active reverb.  Battery capacity:1200Mah.  Bluetooth version:Bluetooth 4.1, stable transmission, low power consumption.     Package Included: 1 x Microphone;  1 x USB Charging Cable;  1 x User Manual