This object tracking phone gimbal is a fantastic addition to your video creation setup! Just connect it to your phone via bluetooth with the easy setup, then you can walk around the room with the gimbal tracking your motions and following you around as you record or snap photos. Truly a worthwhile investment for the budding social media influencers or if you just want to have some fun with videos! Requires 3AA batteries (included). Product Dimension :93mm(L),93mm(W),165mm(H). Supported Phone Size 56-110mm. Package Dimension: 9.5cm(L),9.5cm(W),18cm(H).