... Model12-Lead ECG Blue Tooth Transmitter and Receiver Leads12-Lead, 10 electrodesSampling Rate12 Bits, 4096HzDimensionTrans. 13,5 x 7,5 x 2,4 cmReceiv. ... . 4 x AA batt. (6.0V)Receiv. USB Port (5.0V)ECG DownloadBlue Tooth Transmission 2,4 GHz 100 MCompatibilityCardioScan ... 12-LeadCardioScan Stress TestCertificationCE 0535 CE, ISO 13485 Certificated Wireless Bluetooth ECG transmitter and receiver