Aosai NS Switch Joy Pad Controllers - Left and Right Controllers Compatible for Nintendo Switch Console as a Joy Con Controller Replacement (Red/Blue)
Brand: Aosai
Color: Red and Blue
Question: If there is any problem with the product during use, how do i fix this?
Answer:
Solution A：If the controller is abnormal,like button disorder,crash,connecting problem,etc.Please use the slender object,like needle,insert and press the reset hole on the back of the controller.After doing this, 90% of the problems can be solved.
Solution B：If Solution A doesn't work, email the Aosai US Electronics Store. Aosai has a dedicated customer service to help you solve the problem. We will do our utmost to protect the rights of our customers!
Question: How long does Battery life last?
Answer:Battery life for playing vibration game: ≤10h, Battery life for playing without vibration game: ≤20h, but will vary depending on the software and usage conditions.
Question: Do they stick to the switch?
Answer: Yes and pair very easily as well.
Packing includes:

1 x Pair of game controllers
1 x English manual
1 x USB charging cable
If the controller does not work within three months, contact seller-Aosai and seller-Aosai will send a replacement controller for free.
controllers that make new kinds of gaming possible
The versatile controllers offer multiple surprising new ways for players to have fun.Battery life Approximately 10 hours, but will vary depending on the software and usage conditions
They can also attach to the main console for use in handheld mode, or be shared with friends to enjoy two-player action in supported games.
Each controllers has a full set of buttons and can act as a standalone controller, and each includes an accelerometer and gyro-sensor, making independent left and right motion control possible.