Car Round Bluetooth Display

① Bluetooth version 5.0
② Support USB 5V / 1.0A charging
③ Support mobile app to send emoticon commands
④ Support more than 17 dynamic expressions
⑤ Support RGB 7 color (red, green, blue, yellow, green, purple, white) display
⑥ Led resolution up to 512 lattice
⑦ Support low voltage prompt detection
⑧ Built in 4.2v/1700mah rechargeable battery, low power mode standby for more than half a year, 70 times a day, can work for a month.
⑨ The connection distance between mobile phone and equipment is more than 6 meters.