1). 1 x LED, Red/White.                                                         
2). High - 50% - strobe - slow strobe                     
3). Battery:  3.7V 220mAh built-in  Li-ion, USB chargeable.                 
4). Aluminum alloy + silicone band                                                   
5). Kit: Lamp, USB cable, Blister package.
6). Weight: 0.04KG
7). Packaging: Blister.
8). OEM: LOGO/Packaging is welcome