Color Green + Silver Model Z-03 Quantity 1 Piece Material Aluminum alloy Laser Power 5 mW Wave Length 532 nm Laser Color Green Output Mode Green Light Starry Sky Wave Band Range 520-532nm Working mode Continuous laser Working Voltage 3.7 V Working Current 50 mA Battery Built-in 300mAh rechargeable battery Other Features Charging cable length: 21.5cm; Built-in 300mAh rechargeable battery Working life: 30000 hours above; Green laser light starry sky pattern; It shows red light as charging shows green light as full charge Packing List 1 x Laser pen 1 x Mini USB cable (21.5cm)