1、GOOD FIT: Made of medical grade silicone material, ergonomic design, the sound aids have good fit with ears, and are not easy to fall off. 2、PREMIUM SIGNAL TRANSMISSION: The use of excellent chips makes the sound quality of sound aids outstanding and the transmission stable. Prevent squealing and reduce noise. 3、CONVENIENT USING: The sound amplifier are small in size, light in weight that they not only provide excellent sound, but also comfortable wearing experience! 4、LIFE ASSISTANT: If you find it difficult to hear sound from others, the sound amplifier can help you recover your hearing, so that you can live the life you are used to. 5、APPLICABLE SCENARIOS: Wearing a sound amplifier means rediscovering the fun of gathering with friends and family, feeling more confident at work, and more enjoyable in watching movies, music and TV programs. Item Type: Rechargeable Sound Amplifier Product Material: ABS, Silicone Headphone Battery Type: Lithium battery (shipped with built in battery) Battery Type of Charging Bin: Lithium battery (shipped with built in battery) Battery Capacity of Single Headset: 35mah Charging Compartment Battery: 500mAh 2 x Rechargeable Sound Amplifier 8 x Earplug 1 x Brush 2 x Manual 1 x Charging Cable 1 x Charging Bin