Capacity :20mAh(rechargeable) Bluetooth :5.0 Distance: within 10 meters (accessible) Material :ABS+ Lithium battery: Color: Black pink Green Blue Fingertip Bluetooth remote control Mobile phone Bluetooth selfie page Turner brush ring short video video is a portable device, it is connected to the smartphone through Bluetooth, to achieve remote control function. Here are some of its features: 1. ** Bluetooth Connection ** : Pairing with the phone through Bluetooth to achieve remote control without direct contact with the phone screen. 2. ** Multi-functional operation ** : can be used for selfie, page reading, browsing short videos, like, video and other functions. 3. ** Lazy artifact ** : Especially suitable for lazy people to use, you can lie down or operate the phone in other situations where it is not convenient to hold the phone. 4. ** Compact and portable ** : The product design is lightweight, easy to carry, and does not increase the burden. 5. ** Suitable for a variety of scenarios ** : Whether at home, on the road, or in sports, you can use this device to control the phone. 6. ** Easy to operate ** : User Response shows that the operation is simple and intuitive, easy to use. 9. ** Stability ** : Built-in efficient and stable Bluetooth chip to ensure smooth operation without stalling. 10. ** Compatibility ** : Support mainstream brand mobile phones. The user's evaluation is generally positive, that such products improve the convenience and comfort of using mobile phones, especially when using mobile phones for a long time, can effectively reduce the fatigue of fingers and wrists.