* Surgical stainless steel chestpeice.
* Unsurpassed low frequency response.
* Ultra-sensitive diaphrams for greater amplification.
* Non-chill bell.
* Threaded chestpeice for rapid conversion.
* Fixed 15◦ binaurals for greater comfort.
* Extra thick tubing walls minimize background noise.
* Latex free.
* 28" length.
* Limited lifetime warranty on metal parts.