Original SJCAM 500mAh battery and dual slot charger for SJCAM action camera Dual charging slot, can charge two batteries at the same time Including two pieces 3.7V 500mAh Li-ion batteries Charger input: 5V / 2A (both micro USB and mini USB) Charger output: 4.2V / 0.8A x 2 Fit for SJ4000 / SJ4000 WiFi / SJ5000 / SJ5000 WiFi / SJ5000 Plus / M10 / M10 WiFi / M10 Plus action camera You are getting one dual charger and two batteries