Exceptional acoustic performance, particularly in the cardiac frequency range.
Combined double chest-piece with two different frequency ranges. Instant selection of a double membrane on one side or a conical acoustic head on the other.
High-performance double membrane, 45 mm diameter gives ideal sound transmission and perfect skin contact for exceptional sound reproduction.
Two-in-one tube system for enhanced performance. Very supple, yet kink-resistant with exceptional acoustic reproduction.
Includes ear olives (large / soft) and one pair of replacements (small / hard) for sound insulation.