Features: 1) Do not need battery or any power source 2) Charge in less than 3 minutes; get you up to 2-8 minutes talk time 3) LED can be used as an emergency light 4) Subminiature and be easy to carry, environment protection Inner packing: white box Outer packing: 100pcs/ctn, carton dimensions: 40.0 x 29.0 x 35.0cm Net weight: 13.5kg/ctn Gross weight: 15.0kg/ctn