1. Material: ABS, electronic components 2. Battery capacity: hearing aid: 30mAh, charging case: 300mAh 3. Charging time: 2-3 hours 4. Use time: 35 hours 5. Built-in smart chip, no delay, clearer sound 6. Smart touch design, multi-level party volume can be adjusted freely 7. Ergonomic design, more comfortable to wear 8. Small size, more convenient to carry 9. Earplugs are available in different sizes 10. Product size: charging case: 6.05 x 4 cm, hearing aid: 1.15 x 2 cm 11. Product weight: 160 grams
