Easy to operate: It is easy to operate in three steps. First of all, turn on. Secondly, connect the Bluetooth. Finally, take pictures. Convenient: With this product , it is no need to find someone to help take a group photo. It can control to take a photo in 10 minutes. Selfie artifact: With this product, it can solve the problems that hands can only take a mug shot and one handed photo is easy to slip and shake. Light: With the beautiful design, this product is suitable for us. It is like a ring, it is very light and makes you feel comfortable. Take pictures easily: Simply cumbersome steps and say goodbye to the distress of taking pictures only when you are touching the screen. With the thumb moving, you can take the most beautiful photos at your heart. Item Type: wearable device Battery: built-in battery Remote control range: up to 10m Battery capacity: 30mah Continuous working time: 8 hours Stand-by standby time: 100 hours Colour:Black Material:plastic Package Contents: 2 x Self timer remote control 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.