【High-Definition Dynamic Display】Supports images, 20-second videos, and GIF formats on a 1.7-inch circular screen with 283 PPI pixel density for stunning visuals. 【Bluetooth-compatible 6.0 Dual-Mode Transmission】Quickly update display content with advanced Bluetooth-compatible technology for efficient connectivity. 【7-Color Support Light】Features adjustable frequency lighting effects, perfect for various fan support scenarios and cycling warning adaptations. 【User-Friendly Interface】Includes touch screen operation, brightness adjustment, content deletion, and a pull-down menu for sleep mode, device connection, and support light control. 【Versatile Functionality】Offers screen lock to prevent accidental touches, low battery reminder, charging status display, and transfer progress indicators for a comprehensive user experience. Specifications: Mainboard Dimensions: 29.8mm × 14.6mm × 3.6mm CPU: AC7076A Bluetooth Version: Bluetooth 6.0 Dual-Mode Bluetooth Antenna: Wired / FPC LCD Screen: 1.7-inch Circular Display, Resolution 360×360 (283 PPI pixel density) TP Touch: COB capacitive touch Side Button Configuration: FPC buttons (supports rotary knob, includes surface-mount buttons) Charging Method: Wired charging Battery Capacity: 600mAh Compatible App: ZRUN App Compatible Systems: iOS 12.0 and above, Android 5.0 and above App Supported Languages: English, Simplified Chinese, Hong Kong Traditional Chinese, Taiwan Traditional Chinese, Dutch, Russian, French, German, Portuguese, Spanish, Turkish, Japanese, Polish, Arabic, Malay, Thai, Czech, Slovak, Indonesian, Ukrainian, Vietnamese, Italian, Finnish, Croatian, Danish, Swedish, Korean, Hungarian, Greek, Persian, Hindi, Hebrew, Khmer, Malayalam, Burmese, Romanian, Slovenian, Serbian Display Features: HD dynamic display (supports images, videos under 20 seconds, GIF format), seamless switching between static/dynamic screens Transmission Performance: Bluetooth 6.0 dual-mode high-speed transmission, rapid display content updates, real-time transmission progress display User Experience: 2-second long press to lock screen (anti-misoperation), pull-down interface for quick controls (sleep mode, delete images, connect devices, adjust brightness, activate support lights), precise touchscreen operation Special Features: 7-color support lights (supports tap-to-control frequency), cycling alert mode (high-brightness flashing animation) Practical Alerts: Low battery warning, charging status display Additional Functions: Screen brightness adjustment, display content deletion, device QR code connection