Light up your tree with these Bluetooth Control USB Colour Changing String Lights Choose from 2m, 5m, 10m, 15m, 20m or 30m in length Connect these lights to your phone via Bluetooth and control with the app. Adjust the colour, brightness, light speed and even put them on a timer With 29 different modes, you can create the right mood These LED string lights are perfect for your Christmas tree Plug these USB lights into a power source and see them light up App is Android and iOS compatible   Buying Options: 6.99 pounds instead of 19.99 pounds for the 2m Lights - save 65% 8.99 pounds instead of 24.99 pounds for the 5m Lights - save 64% 9.99 pounds instead of 29.99 pounds for the 10m Lights - save 67% 12.99 pounds instead of 34.99 pounds for the 15m Lights - save 63% 14.99 pounds instead of 39.99 pounds for the 20m Lights - save 63% 19.99 pounds instead of 44.99 pounds for the 30m Lights - save 56%