This is the Hitec LiPo Battery Checker and Balancer. FEATURES Check voltage of each cell and balances 2-6S LiPo batteries LCD cell voltage display Digital battery capacity display Auto shut off INCLUDES Hitec LiPo Battery Checker and Balancer with FlightPower/Thunder Power Adapter, Wrist Strap and Instructions SPECIFICATIONS Voltage Display Tolerance: +/-1.5% Voltage Display Resolution: 0.01v Voltage Display Range: 0-5v Balancing Current: 50mA Case Size: 2.7 x 1.5 x 0.43" (70 x 38 x 11mm) Weight: 0.81oz (23g) Operating Temperature: 10-45°C Storage Temperature: -20-+60°C