Feature

🔥🔥Comfortable: Made of high-quality material, durable and sturdy, comfortable to wear. Ergonomic design, soft and flexible, these hearing aids help you a lot in daily life.
🔥🔥Noise-canceling: Built-in intelligent chip, clear and noise-canceling, no worry about the noisy environment.
🔥🔥Multifunctional: There are 5 different sizes of earbuds, no worry about discomfort, suitable for different people.
🔥🔥USB Rechargeable: Safe and rechargeable, with a long standby time, no need to replace the battery, environmental-friendly, and power-saving. 
"Support Bluetooth function for hands-free operation or phone music.(OPTIONAL YOU CHOOSE)"
🔥🔥Convenient: Easy to operate and use. One button to switch the working modes, to adapt to different occasions, whether at home or on a noisy street, to bring you clear sounds.

Specifications:

Maximum Sound Output: 118+/- 4dB
Sound Gain: >= 32dB+/- 2dB
Total Harmonic Distortion: <= 7%
Frequency: 300-3800MHz
Input Noise: <=32dB
Voltage: DC 3.7V
Current: <=2mA
Charging Time: 3 hours
Support Bluetooth earphone or hands-free call function (OPTIONAL YOU CHOOSE)
Normal Working Time: 45 hours
Bluetooth Working Time: About 3 hours

Packing list:

1 PCS / 1 Pair x Hearing Aids (BLUETOOTH OPTIONAL YOU CHOOSE)
1 x USB Charging Cable
5 x Earbuds
1 x Brush
1 x Container Box
1 x User Manual