The patented SmartTone technology allows you to monitor high and low frequencies by varying the pressure applied to the chest piece. SmartTone technology allows a full range of sounds to be heard through just one chest piece. Features a deluxe stainless steel chest piece, and a stainless steel dual inner-spring binaural.
- Length: 30 in.
- Color-coordinated nonchill ring and diaphragm retaining ring
- 22 in. tubing
- Includes: 2 extra sets of ear tips (1 flexible, 1 hard plastic) in 2 sizes and 1 extra diaphragm