Brand Name: TOPZERO Shell Material: Plastic Charging Devices: for Drones Input Interface: USB Battery Type: Li-polymer Battery Features: Wireless Charging Battery Capacity: 0-2000mAh Size: 15*40*67mm Supports Solar Energy: No Support Quick Charge Technology: No Output Interface: DC Type: Portable Power Bank Weight: 60g Is LED Lamp Illumination: No Quality Certification: ce Quality Certification: ROHS Quality Certification: FCC Capacity: 1000mAh Input: 5V/1.0A Max Output: 5V 400MA Plug: Micro USB Output Interface: Wireless Product Size: 15 x 40 x 67 mm Packing Size: 60 x 25 x 100 mm Product Weight: 39.5g Packing Weight: 56.5g Feature 1: For i watch 1 2 3 4 5 Feature 2: For Apple Watch Feature 3: portable wireless power bank for i watch