... , speech, sound field, White noise and narrow-band masking noise standard model testing and SISI, ABLB, Stenger, etc. Special test, but ... .4 × 3.3in. Weight: about 4.5kg. Audiometer type: 3. Standard: Listening Total manufacturing standards: EN60645-1, EN60645-2, EN60645-4 ... . Safety Standards: EN 60601-1, 1 Class B EN 60601-1-2; EN 60601-1-4. Standard configuration: 1.TDH39 bone conduction headset ...