... scanner in the world,weighting only 600 grams with the probe and internal rechargeable battery together,its sharp image,battery operation ... /Heart Rate/EF rate for heartStander Accessories:AC Adapter,internal Battery,Gel,Mouse,Metallic StandOptional:5.0MHz Sector Probe, ... 3.5MHz waterproof probeOptions1). 3.5MHz waterproof probe2). Extral rechargeable internal battery with the cable3). Car Charger