Hearing protection device for Dental professionals (dentists, hygienists, technicians etc.). Allows communication between patient and staff. Easy to switch between hearing mode and silent mode. Effective active noise cancelling mode and full hearing mode with hearing protection. Decreases noise and daily stress. Very effective in low and high frequency noise (reduction up to -35dB). Small and easy to use (no wires, no settings). Increases focus during treatments. For patients (decreases scary noise and stress). Hygienic and safe (no electromagnetic interference). Long battery life (20 hours on a single charge, Re-charge in 1 hour). EN352 Certified hearing protector. Package includes: One pair of QuietOn earplugs Charging case and charging cable One pair of memory foam tips (size S) One pair of memory foam tips (size M) One pair of memory foam tips (size L)Retention cord without clip User manual Non-Latex Country of Origin: Poland