Power2tek 7.2V BATTERY Fits to Sportdog WetlandHunter SD-800Camo ST-120W transmitter, MH250AAAN6HC +FREE ToolSet Capacity: 210mAh Type: Ni-MH Volts: 7.2V Size : 31.55 x 20.80 x 21.34mm Certificated with ISO9001, RoHS & CE;