Features: 2 pcs high brightness white LED CNC Aluminium heat sink casing Auto safe mode Mode memory function Rechargeable lithium polymer battery (3.7V 300 m Ah) 3 steady modes & 4 flashing modes Quick release universal bracket (fits all round & AERO style bars) Low battery, charging & fully charged indicator Automatic fully charged cut-off system Side visibility Water resistant (IPX 4) Recharge time 2hrs Size (W x D x H): 69 x 20.5 x 16.5mm Weight: 0.028 Kg; Pascking & Package: 0.1kg Contents: *RB-22 (Universal bracket) *2 O-rings for mounting: RS-G (fits 20-35mm diameters) RS-H (fits 35-52mm diameters) *BK-21 (Belt clip) *USB (Universal Serial Bus)-WP (Water resistant USB (Universal Serial Bus) cable)