Specification BatteriesRequired : 1 Brand : ADC BulletPoint1 : Used to quickly locate the source of engine noise such as piston slap, worn gears and bearings, blown gaskets. Also useful tracking down dashboard rattles and squeaks. BulletPoint2 : Desined to help locate the source of excess bearing and machine noise easily at low cost. BulletPoint3 : It can pick up and amplify the weak audio signals via a sensitive piezoelectric sensor, and distinguish the normal/abnormal signal and its location. BulletPoint4 : It can distinguish the normal/abnormal signal and its location. BulletPoint5 : Frequency range is 10~10K Hz Color : Black ExteriorFinish : Aluminum ExternallyAssignedProductIdentifier : 7801931193211 ExternallyAssignedProductIdentifier1 : 0634782021641 ExternallyAssignedProductIdentifier2 : 634782021641 IsElectric : 1 ItemDisplayWeight : 3 pounds ItemName : ADC AD670Q Adult's Proscope Dualhead Scope Black One Size ItemPackageDimensions_Height : 10 centimeters ItemPackageDimensions_Length : 20 centimeters ItemPackageDimensions_Width : 15 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : stethoscopes Manufacturer : ADC Material : Plastic Material1 : Aluminum Material2 : Polyvinyl Chloride ModelName : DAUZwns0md82bt-11 ModelNumber : AD670Q PartNumber : ASW-26450 ProductDescription : The ADC AD670Q Proscope combines lightweight comfort, sensitive acoustics, and handsome styling, with truly affordable pricing. Combination diaphragm/bell chestpiece for wide frequency response. Diaphragm diameter 1 3/4, bell diameter 3/4 inches. Lightweight aluminum chestpiece construction. Non-chill diaphragm rim for patient comfort. Proprietary diaphragm enhances acoustic response by 50% over traditional designs. Adjustable aluminum binaurals with PVC eartips. Flexible 22 PVC tubing. Spare pair ofir of black mushroom eartips included. Non-chill bell ring and diaphragm for patient comfort. Overall length 32.5 inches. ProductSiteLaunchDate : 2010-12-01T20:38:49.488Z Size : One Size Style : Digital SupplierDeclaredDgHzRegulation : not_applicable UnitCount : 1 UnspscCode : 42182100