Features 1. Battery status indicator. 2. Check the battery at low power. 3. Built-in speaker. 4. Headphone output. 5. The probe can be changed. 6. Probe inspection. 7. Backlighting. 8. Automatically shut down. 9. 2xAAA1.5v alkaline are available and can work for no less than 10 hours ((excluding battery)
Packaging 1 x fetal Doppler 1 x English manual 1 x Headphone line
