Specification:
Input Voltage: DC24V.
IC Type: FCOB RGB WS2811 IC.
Wattage: 21W/m.
FPCB Width: 12mm.
LED Quantity: 720 LEDs/M.
Cutting Length: every 50mm.
Individually Addressable: every 50mm can be unique controlled.
Color Rendering Index: Ra＞90.

Package:
3 Options, you could choose the option you need.
Option 1, FCOB RGB IC LED Strip Only (power supply and controller are not included).
Option 2, FCOB RGB IC LED Strip 3 Keys Controller (power supply is not included).
Option 3, FCOB RGB IC LED Strip Bluetooth Controller (power supply is not included).

Please Note:
If your country's domain name does not end in .COM or .UK. This wifi kits can NOT work with your Alexa. then maybe you could buy other led strip kits, thank you.