Feature 1Car LED emoticon pack Al intelligent interaction, driving safety partner, supports for Android and for IOS smart phone. 2Supports APP manual control with your phone, select the corresponding expression and interact with the rear car. 3LED resolution up to 512 dot matrixs, Supports 17 dynamic emoticon as well as customized ones. 4Builtin 4.2V 1700mAH rechargeable battery, supports USB charging and low voltage detection. 5Low power consumption of more than 1 month work time, transmitting distance no less than 10m/32.8ft. 6Supports RGB display of 7 colors: red, green, blue, yellow, cyan, purple, white.Conditon: 100% Brand NewItem Type: Car LED Display ScreenMaterial: ABSColor: As Pictures ShownSize: Approx. 105 x 183mm/4.1 x 7.2inBluetooth: Using Bluetooth Version 5.0Support USB 5V/1.0A ChargingSupport Mobile APP to Send EmoticonsSupport More than 17 Dynamic EmoticonsSupport RGB 7 Colors (Red, Green, Blue, Yellow, Cyan, Purple, White) DisplayLED Resolution: 512 Dot MatrixsSupport Low Voltage Prompt DetectionBattery: BuiltIn 4.2V/1700mAH Rechargeable Battery, Low Power Consumption Mode Standby for More than Half a Year, 70 Times Daily Usage, Can Work for One Month.Mobile Phone and Device Connection Distance: More Than 6m / 19.7ft .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List1 xCar LED Display Screen1 x Bilingual Manual(English, Chinese)