1. It is both a cell phone expansion bracket and a Pocket 3 case, 2. Portable teleprompter, video no longer worry about forgetting words, 3. Enlarge the screen, synchronized monitoring of the content; support cell phone horizontal/vertical , free choice, 4. 1/4 thread can be matched with tripod and extension rod, cold shoe interface can be connected to the microphone, fill light, 5. Tailored for Pocket 3, does not cover the buttons, charging holes,Compatible with two grips, secure locking, quick disassembly. Colour:Black Material:plastic Package Contents: 1 x mobile phone prompter bracket 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.