1.rechargeable and waterproof, 2. 8LED+2 laser diode,continuous working ... A Charge voltage 4.2-5VDC-500 mABattery: 14500 rechargeable battery, capacity 1200 mAh, voltage 3.7VWork Time: continuous wok ... W145mm×H45 mmTotal Weight: 0.2KgNote:As to its battery protected unit,if over charged,this unit will shut ... down to protect the battery(that is take out the charger,the tail ...