Mini Hearing Aid In Ear Wireless Bluetooth Earphone for Seniors Severe Hearing Loss Portable Ear Hearing Amplifier Comfortable

High-concerned chemical : None Material : ABS Category : Earphones & Headphones Line Length : [object Object] Sensitivity : [object Object] Active Noise-Cancellation : No Volume Control : Yes Control Button : No Vocalism Principle : Dynamic Communication : WireLess Style : In-ear Certification : None Origin : Mainland China Brand Name : ALLOYSEED Resistance : [object Object]