Rubber-Finished ABS Speaker with Microphone, Bt Transmission, Tf Card Reader & 3W_&_4O Power. This Speaker has Autonomy Up to 2 H & Functions Such as Answer Calls, Control the Volume & Connect to the Mobile Device Playlist. This Product Includes USB Cable for Charger. Ø59 x 55 Mm; Certificates Available: Msds, Red Minimum Quantity: 1