For AXNEN F8 operation instructions, please refer to the following video and note the following points: 1. Before turning on the F8 gimbal, you must place the phone and keep the phone horizontally balanced, and twist the balance knob tightly (if you turn on the F8 without the phone or turn on the F8 without the phone horizontally balanced it will cause abnormal vibration or shaking of the F8). 2. F8 is connected by Bluetooth through the phone and does not support extra app. apps F8 3-Axis Handheld Gimbal Stabilizer Both Horizontal and Vertical Simple and Easy to Operate Without APP Single Click To Take a Photo Or Video 320 Panoramic rotation Charging Voltage:5V Working Temperature:0-40 Working Time:4-6hrs Applicable Models:7 INCH The Load Weight:75g----250g Battery Capacity:2200mAh Range Of Pitch Motor:-160~+160 Range Of Roll Motor:-85~+85 Range Of Yaw Motor:-160~+160 Size Of Interface:1/4 Inch threaded joint Material: plastic colour: black Package Contents: 1 x Gimbal Stabilizer 1 x Tripod 1 x USB Cable 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.