Features 1、Rechargeable, no need to replace the battery, suitable for the elderly with hearing loss, easy to operate and easy to use. 2、The volume is adjustable, can be adjusted according to different conditions, the cable and the earphone are separated, more convenient and safe. 3、Make full use of the structure of the ear to design the appearance of the hearing aid so that it fits the users's ear completely and comfortable to wear. 4、Help reduce background noise, discover the fun of gathering with friends and family, make work more confident, enjoy movies, music and TV shows freely. 5、It is easy to use, no complicated procedures and operations are required, and it is specially designed for the elderly. Specification Condition: Brand New Item Type: Sound Amplifier Material: ABS+Silicone Color: Black Weight: Approx. 146.0g/5.2oz Maximum Electrical Level: <129dB + 3dB Output Sound Pressure: 120dB + 4dB Full Gain: 40dB + 5 dB Frequency Response Range: 450Hz-3000Hz Total Harmonic Distortion: <10% Equivalent Input Noise Level: <32 dB Charging Time: 6-10h Continuous Working Time: 12-18h Function: Sound Enhancement, Noise Insulation Application: People with mild hearing loss Battery: Built-in Li-ion Battery, 300 mAh Package List 1 x Sound Amplifier 1 x Earphone 4 x Earplug 1 x Charging Cable 1 x Manual