Adscope Electronic Stethoscope Black Larynogoscope Supplies 4 mm LCD Wheels: (2) Style:1 Pair (Left & Right) 4 mm LCD Wheels: (2) Wheels for ease of movement Power Source: 100 240V adapter (ADPT30) included 6 AA batteries (not included) Seat Size: 18 ¨ (w) x 15 (d) x 17 ´ (h) 464mm (w) x 381mm (d) x 445mm (h) 9N) 1N(1000N 1335N) * Battery Life: 6 8 hrs powered on 30 minutes after low battery condition * Charge Time: 80% charge => 45 minutes Full charge => 2 hrs * Data Storage Capacity: 150 tests * Calibration Points: 31 point (Every 10lbs 0 300) * Preset Test Length: 0 *Retail boxed w fitted foam inside * Amplifies up to 16x (24db) over traditional acoustic scopes * Patented piezopolymer film contact microphone provides wider frequency response than acoustic mikes used in competing models *Three frequency modes: Bell (15 200Hz) for cardiac sounds Diaphragm (100 500Hz) for lung sounds Extended Range (15 1000Hz) *16 level volume control * Holds last mode and volume setting for convenience *Auto shut off after 3 minutes extends battery life *Battery warning LED signals when replacement needed *Binaurals fixed at 15ß angle for snug fit *Specially constructed ADSOFT⁄ PVC eartips * Weight: under 6 oz measures just 28 * Uses ÀAAAÃ battery (included) * Made in Korea * 2 year warranty