Round Aluminium Metal Bluetooth Speakers with Built-in, Hands-free Calling Function. They Come in Range of Metallic Colours with Sleek & Luxurious Design. These Great Value, Round, Portable Speakers Have Great Branding Area & Can be Printed or Engraved. 3w Speaker Output, 10m Transmission Range & 400mah Battery, Providing 2 Hours of Playback Time. Standard Colours: Black, Silver, Rose Gold, Gold. Minimum Quantity: 200.