Smart Ear-Hook Rechargeable Bluetooth Hearing Booster Earphone Noise Reduction Sound Amplifier Listening Device For Elderly Gift

High-concerned chemical : None Material : Plastic,Metal Category : Earphones & Headphones Features : Active Noice Cancelling Waterproof : No Line Length : [object Object]m Sensitivity : [object Object]dB Function : For Hearing Aid Active Noise-Cancellation : Yes Volume Control : Yes Control Button : Yes Vocalism Principle : Bone Conduction Wireless Type : Bluetooth Communication : WireLess Style : Tws in-ear headphones Certification : None Origin : Mainland China Brand Name : ALLOYSEED Resistance : [object Object]