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| Brand Name : | Retone | 
| Model Number : | K22 | 
| Certification : | FCC, CE,FDA, RoHs | 
| Price : | $90-$120/Units >=100 Units | 
| Delivery Time : | 7-15 days | 
True Wireless Earbuds Bluetooth hearing amplifier Touch Control with Wireless Charging Case IP8 Waterproof Stereo Earphones
* 100% Rechargable, Magnetic Charging Station
* Crystal Clear Digital Sound Quality
* Comfortable Wearing, Easy to Use
* MCIC Type
* Fits Ear Canal Nicely Without Discomfort
* Easy to Use Up and Down Volume Buttons
* Low Power Consumption Long Time Using Whole Day
* Using Time with Charger Case > 30 hours
* Charging box is also a portable which can supply twice full
charges* Earbuds Design
| K22 Rechargeable hearing aids | Digital ear canal | 
| Maximum output (dB SPL):110 | Frequency range (Hz):200-4500 | 
| Average output (dB SPL):108 | Harmonic distortion: 500Hz: 3% | 
| Full gear gain (dB):35 | Harmonic distortion: 800Hz: 3% | 
| Average gain (dB):30 | Harmonic distortion: 1600Hz:3% | 
| Battery: rechargeable lithium battery | Internal noise (dB):30 | 






                                 
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