Old People Voice Amplifier Sound Collector Hearing Aid 1. Material: ABS 2. Hearing aid battery capacity: 40mAh 3. Charging compartment battery capacity: 400mAh 4. Hearing aid charging time: about 3h 5. Charging port: Type-C 6. Packing list: hearing aid x2, charging compartment x1, charging cable x1, screwdriver x2, brush x2, lanyard x1, silicone earplug cover x8 Features: 1. Isolation mesh design to prevent foreign material from entering the speaker to cause blockage and prolong the service life of the hearing aid 2. Type-C port, cycle charging, the blue light indicates that the hearing aid is being charged, and the blue light is off to indicate that the hearing aid is fully charged 3. Intelligent noise reduction, filtering external noise 4. Silicone earplugs, good elasticity, soft and comfortable 5. The charging port, keep it clean to avoid foreign objects entering and unable to charge 6. Volume keys, increase clockwise, decrease counterclockwise 7. Delicate and compact, easy to carry, with lanyard design, easy to hang