• Universal dual charger compatible with almost all types of rechargeable batteries need many special chargers. 
• Red light indicates charging status.
• When the rechargeable battery voltage reaches about 4.2V, the red light turns green. At this moment, the charger is not fully charged, but continue to load with small drip series.
• Battery & Battery: (Not Included)
• Model: hd-8991b 
• Material: Plastic 
• Power: 5V 
• Product Voltage: Dual Voltage (110V/220V) 
• Output Voltage: 4.2V/2400mAh
• Charging Method: USB Charging
• Product Dimensions: 12cm x 6cm x 4cm
• Weight: 0.076g (Approx.)
• Product Color: Black 

Care: Space out of reach of children with chemical or chemical substance around the printing.

After purchasing: kindly note that we only sell the product and we are not committed to install it to the customer or teach him about it