1. Bluetooth Automatic Time Sync: 16.5 inch large digital wall clock with Bluetooth 5.3 technology, not need manual time-setting, digital calendar can one key to sync phone time, automatic calibration time 4 times per day, enjoy convenience and precision 2. 11 Color Modes: Digital wall clock large display with: 6 single colors, 3 RGB flowing gradient colors, 2 changing Colors; 4-speed manual or automatic brightness adjustment, customizable your own color according to your preferences and environment 3. Multiple Functions and Convenient to Use: This LED wall clock can mode button or use the Remote Control to operate, operated from up to 32 ft, have 9.5ft long power cord; very suitable for Gym Home Garage Office Classroom and limited mobility 4. 9 Groups and Easy to Hang: Timer groups T1-T8, timing range: 0:00:00-29:59:59, T9 timing max up to 40 days; No need to drill holes, 't damage your wall, complimentary double sided tape allows hanging board firmly attached to the wall 5. Outlet