Product Name: For 3S/Q3 Universal Charging Dock Model: HBV-637 Input: DC 9V-3A Output: DC 5V-2A Charging Time: Helmet about 3 hours, handle about 2.5 hours Supported battery capacity: 350mah lithium battery x 2 (not included) Product Description: 1. for 3S/3 glasses, handle 2. Handle charging: First remove for 3. Install the controller battery cover and the included rechargeable battery, then install the included battery cover (need to correspond to the left and right) 3. The ambient light is blue when powered on, and the touch control button can control the light switch Handle charging indicator: charging: white light, full: blue light To charge the glasses, you need to look at the indicator light on the side of the head 4. There is a non-slip foot pad at the bottom of the charging stand for more stable placement Material: ABS Color:White Due to different batches, there may be differences in product appearance, color, and printed text, which not affect the use. Package Contents: 1 x Charging Station Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.