LeexGroup&reg; 5PCS CR2016 3V Lithium Button Coin Battery For Flash Cases Apple iphone 4 4s iphone 5 Samsung Galaxy S2 S3 S4 i9100 i9220 i9300 i9500 Note 2 N7100 HTC ONE M7 Sony LG Nokia Blackberry etc. ---100% Environment Friendly; ---Chemistry: Lithium;Norminal Voltage:3V; ---Package includes: 5 PCS CR2016 Button Coin Battery; ---Warning: Please keep these and other batteries away from Children; ---Our products are all from factory direct supply, we can guarantee 100% inspection before shipping. If any problems of our products really exist, an exchange or a refund is available.