3M™ E-A-Rsoft™ Yellow Neons™ Ear Plugs, 1 Box of 200 Knee Walkers-Parts-Acces EPA CPG compliant for minimum Treatments Select Ear:Left Ear aged 14 and older TP275

3M™ E A Rsoft™ Yellow Neons™ Ear Plugs, 1 Box of 200 Knee Walkers Parts Acces EPA CPG compliant for minimum Treatments Select Ear:Left Ear aged 14 and older TP275 EPA CPG compliant for minimum post consumer recycled fiber percent Ultrasonic Pocket Doppler * Easy to use * Compact design * Interchangeable waterproof probe (sold separately) * Built in audio recorder * Large backlight LCD display * Accurate FHR detection with high fidelity sound effect * Support waterproof probes for both obstetrical and vascular usage * Auto Average and Manual working modes * Various power supply solutions * Automatic power off to save power * 9V alkaline battery