Peace, mercy, and blessings of God be upon you. Smooth 4. The Zhiyun Smooth 4 is a professional three-axis smartphone gimbal stabilizer, designed for content creators to record smooth video. It features a battery that lasts up to 12 hours, a cinematic focus/zoom wheel, PhoneGo mode for quick response, as well as object tracking and time-lapse features via the ZY Play app. It has a fault I don't know about, honestly. Whoever wants it for 80 can contact me. May God grant you success.