Cardiology stethoscope DS88 series, MD33 series

electronic

Ergonomically adjustable soft-sealing eartips Professional customized in-ear cardio-pulmonary headphones High-fidelity listening to heart and lung sounds Lightweight and convenient Main feature • Cardiopulmonary auscultation mode switching • Outstanding sound sensing technology achieves distortion rate <1.5% • Up to 24X sound amplification • Excellent ANR technology reduces unwanted ambient noise • Auscultation can be proceeded through light-weight clothing • !Inbuilt recording and playback function Technical Specifications Specifications: 152'47'57mm Diaphragm Diameter: 1.4" (36 mm) Overall Length: 56" (1430 mm) Weight: 109g Main Color: Gold, Rose Gold, Platinum Gold, etc. Functional Button Number: 8PCS Attenuation: 100Hz-500Hz s 12dB 600Hz-1000Hz 520dB Audio Range: 20Hz-1000Hz Interface: LED Indicator Operation Time: 20 hours Power Type: Rechargeable Li-ion Battery Accessories Included: 3.5mm Specialized Earphone, USB Cable,