Features: 1. These very bright LED string lights are operated by 3 x AA batteries (not included in the package). 2. The small clear plastic battery case is approx 17mm x 47mm x 75mm long and can be easily hidden in any lighting display.. 3. The lights can be used in constant ON mode or Flash mode and there is an ON/STEADY/FLASH/OFF switch on the battery case. 4. This string light is suitable for both indoor and outdoor use, due to this light is not fully waterproof, please keep it from rain and water when you use it outdoor. 5. These lights are great for decorating anywhere and are cool to touch so you can decorate clothing, costumes, plants, flower arrangements etc. Use at Weddings, Christmas, Parties, BBQ"s etc. Specifications: 1. Total LED lamps quantity: 40 2. Main cable length: 13ft/4m 3. Approx. 46.5cm from battery case to the 1st Heart lamp bead 4. Approx. 11cm from one Heart lamp bead to the next one 5. Power source: 3 x AA battery (not included) 6. Power: 6W 7. Light Color: Purple 8. Cable Color: Transparent 9. Shape: Heart 10. Two Function modes: steady & twinkling.Transferring the function mode by the ON/STEADY/FLASH/OFF button on the white battery case Noted: This is not a fully waterproof one, to maintain the long life span, you shall keep it from rain or damp environment. Package Includes: 1 x Innoo Tech 4M 40 Battery operated Purple LED Fairy string light,Heart shape