Feature:1. Built-in 1500mAh lithium battery, charging1.5 hours, continuously warm your hands for 1-3 hours.2. With a silicone rope, pocket size, easy to carry, warm your hands when you go out in cold winter.3. Adopts premium ABS and aluminum alloy material, safe, sturdy and durable.4. With exquisite workmanship, surface, it has comfortable hand feel.5. Suitable for using in classroom, office, library, home, etc.Specification:Condition: 100% Brand NewItem Type: Hand WarmerStyle: Kenny, Bryan, Koe(Optional)Material: ABS + Aluminum Alloy + SiliconeColor: As shown in the pictureSize: Approx.8x6x3cm / 3.1x2.4x1.2in Lanyard Length: Approx.13cm/5.1inWeight: Approx.120g/4.2ozLithium Battery Capacity: 1500mAhCharging Time: 1.5 hours, can contanly heating for 1-3 hours, lighting for 15 hours.w-e-text table td,.w-e-text table th,;.w-e-text table,Package List:1 x Hand Warmer1 x Instruction Manual in English and Chinese1 x USB CableNote:1. Please allow 1-2cm error due to manual measurement. Thanks for your understanding.2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.