400-light string is suitable for installation indoors or outside, including on curved surfaces and along walls RGB LEDs offer 16 million colour options to help you create the ideal ambiance for everyday lounging and special events Dot-style lights have a minimal look that keeps the focus on the pretty colours 30,000-hour lifetime allows endless opportunities for you to enjoy your lights Instant Bluetooth and Wi-Fi connectivity enable easy setup Compatible with Google, Alexa, HomeKit, OMEN, and Razer Chroma devices to fit seamlessly into your smart home Use the free Twinkly App for iOS and Android on mobile and tablet to control your light show Connect to Twinkly Music to allow the lights to react to music