Product parameters: Product weight: 300g Product size: 6.7x3.7x3.7" Support phone size: 56-100 mm Mechanical angle: 360 ° Horizontal rotation of infinite position; twenty-five ° It turns up longitudinally; twenty ° Flip down Battery capacity: 1200mAh lithium battery Continuous working time: 3-4h Material: ABS [no application and Bluetooth] - due to the built-in intelligent tracking camera, our mobile tracking bracket does not require you to download any application or establish a Bluetooth connection [face tracking] - the face tracking mobile phone bracket can automatically recognize the face, making it especially suitable for shooting people's video, capturing every action and recording every moment of live broadcast and online class [rotation stability] mobile phone bracket with tracking, 360 ° Automatic rotation to track. It will rotate steadily as you move. When photographing multiple people, it will automatically detect the person in the middle or the nearest person. It is more stable than other products, and will not sway left and right like other tracking tripods [rechargeable battery] smart tracking mobile phone bracket is equipped with built-in rechargeable battery and USB charging port, which can be charged at any time and used continuously [suitable for live broadcast] the product's dual motor two-way rotation + beauty fill light, abandoning the traditional manual angle adjustment, realizes fully automatic face following, so that you can maintain a beautiful image all the time