smavco Bundle BP37F Battery for Dogtra EF3000 Gold Dog Containment System Collar, iQ Plus Remote Dog Training Collar Plus Short Flat Micro USB Cable, 300mAh Capacity: 300mAh Dimension: 30.00 x 15.50 x 7.20mm Compatible Part no.: BP37F Compatible Models: Dogtra EF3000 Gold Dog Containment Collar, iQ Plus Remote Dog Training Collar