Racer's Edge USB 4-Port 1S (3.7V) LiPo Battery Charger RCE1691

This is a Racers Edge RCE1691 USB Multi-Charger for Charging Up To 4 1S Lipo Batteries at Once (Hubsan Connector).

Racer's Edge new USB charger allows up to four 1S LiPo packs from Hubsan and other brands to be charged simultaneously from a mobile charger, device charger, computer or automotive USB outlet. Never wait to fly your micro or nano quad or aircraft again!