Battery Type: Lithium Ion. Charging Time: 2.5 Hours. Press the switch to begin charging. Charging light will be auto off when charging in progress. When all 4 lights stay without flashing, the battery is fully charged. Pressing switch and stay long for infrared ray light on/off. Double click switch for LED light on/off.
Features: With infrared laser pointer and LED light. Capacity: 2800 mAh.
Dimension: 10cm(H) x 3cm(L) x 2.3cm(W)