XCSOURCE® Dual USB Battery Charger + 3 ports 4x 1180mAh AHDBT-201 / AHDBT-301 / AHDBT-302 + cable Batteries GoPro HD Hero 3 To 3+ BC320 (Electronics)
Very good product at a good price, works well for now. Well packaged product. If you want to charge the batteries on the sector, you need to buy the adapter "sector" or use the one on your phone, for example.