About This Motion Sensor: Motion Sensor With 4 Kinds of Halloween Spooky Music: This Halloween String Lights Comes With Built-In Passive Infrared Technology (Pir), The Motion Sensor Range is About 6.65—16.4FT, 4 Kinds of Halloween Scary Music Can be Triggered and Play Automatically When Someone Approach The Sensing Area Support USB or Battery Powered: Our Halloween String Lights,Battery Powered Orange & Purple 2 Colors in 1 (Powered by USB or 3 AA batteries (BATTERIES NOT INCLUDED).It Supports 2 Color Modes: Orange Only, Purple Only, Support USB or Battery Powered. No Wiring Required, Easy to Put or Hung on Wall, Window, Door, Tree, Fence and Anywhere for Halloween Decoration 6 Lighting Modes Sync with Music: The Lights Sync with Scary Sounds Perfectly and Will Add a Great Addition to your Halloween Display. Each Music Has Different Corresponding Light Dance/Twinkle Effect: Combination - Sync With Spooky Music From 1 To 4; Sync With Spooky Music 1; Sync With Spooky Music 2; Sync With Spooky Music 3; Sync With Spooky Music 4; Steady On Lighting Mode (Purple & Orange) Without Any Sound. You Can Select Different Modes by Pressing the Buttons On the Controller, Enrich Your Halloween Holiday Waterproof & Portable & Applicable Scenarios: Adopted with IP65 Waterproof String Lights, Suitable for Use Where Rain, Spraying Water, Snow are Likely.Our String Lights are Perfect for Halloween, Party, Porches, Roofs, Patio, Lawn, Home, Window, Hallway, Courtyard, Garden, Trees ect Indoor and Outdoor Decorate Caution: When you Charging the Light with USB, You Need to Remove the Batteries First, Otherwise the Battery Box Maybe Get Heat Overview Color : Motion Sensor Purple+Orange & Music Brand : Green Convenience Indoor/Outdoor Usage : Indoor Special Feature : Remote Controlled Light Source Type : LED Power Source : Battery Powered Light Color : Warm White Theme : Christmas, Lantern Occasion : Christmas Style : Modern