1. DSP digital chip, high-definition digital display 2. Push-button design one-touch operation, simple and easy to understand for the elderly 3. High-frequency moving iron for headphones, multiple detection of external and in-ear noise and automatic filtering, easy dialogue and communication 4. Dual-ear radio can prevent unilateral hearing fatigue, do not hurt the ears to protect hearing 5. Host battery capacity of 28 mA, charging compartment 300 mA 6. Charging time: 2-3 hours 7. Working time: up to 30 hours 8. Charging port: Type-C
