For Samsung Galaxy Tab 4 8.0 T330/T331/T377 Diamond Series EVA Anti-Fall Shockproof Sleeve Protective Shell Case with Holder & Strap(Green) Type-USB Hubs Purpose: 12-24V centralized power supply

Purpose: 12-24V centralized power supply

Transmitter operating voltage: 12V (battery model: 23A 12V)(Not include battery)

One Package Size 38cm * 29cm * 5cm / 14

General Compatible with Asus:  Zenfone 4 Max ZC554KL

For Samsung Galaxy Tab 4 8.0 T330/T331/T377 Diamond Series EVA Anti-Fall Shockproof Sleeve Protective Shell Case with Holder & Strap(Green) Type-USB Hubs Purpose: 12-24V centralized power supply1. Simple and easy, comfortable, easy to carry. 2. Unique design with hand strap, can be used for support. 3. Provide a full protection from dust, shock, scratches and bumps and other daily damage. 4. All buttons and ports are easy to access. 5. With good performance and high quality material, it may work for a long time. Note: The actual product is subject to the title model, the model machine of the picture is only for effect reference.