Product Name: Ruyi Charging: USB cable charging Usage duration: 90 days Screen: High definition night light screen Charging: duration of 2 hours Channel: 9 channels Color: Red, yellow, green, pink, gray Specifications: [ Nightlight Large Screen ] Large screen and font with one click to light up backlight [ USB cable charging ] Charging for 2 hours and using for 3 months [Silent Key] Silicone Key 5 millionanduses [ Equipped with lock button ] Large screen and font with one click to light up backlight [Adjustable Ring Band]Free adjustment of size, skin friendly silicone does not touch hands [ Comes with 9 channels ] Each channel is independent, with 1 channel up to 9 channels Package Included: 1 x Counter Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.