Features: The Double Port Charging set features a 3.7V battery delivering 40-60 hours of runtimes, 50% longer than traditional batteries, with USB fast charging capability for anglers. Enhanced with brighter materials and shock resistant plastic housing, this waterproof fishing tool ensures visibility and durability in outdoor environments. Designed for environmentally aware fishing enthusiasts who prioritize sustainable gear and require power sources during extended angling. Perfect for nighttime lake expeditions, ensures clear float tracking while the compact design fits seamlessly into tackle boxes or backpacks. Optimize your fishing efficiency with double charging ports that power multiple devices simultaneously, backed by a 40% more impacts resistant casing for performances. Specifications: Component: Plastic Size: about. 4.1x2.5cm/1.61x0.98in Voltages: 3.7V Working Time: about. 40-60 hour Package Includes: 1 Set Fishing Float Battery note: Please allow 1-2cm errors due to manual measurement. Due to difference between different monitors, the picture may not reflect the item actual color.