GM-101 Wireless Elderly Hearing Instrument Charging Sound Collector, Plug: US Plug(Black)

1. Material: ABS, electronic components2. Function: intelligent auxiliary listening, noise reduction, high-definition sound quality, stereo surround sound, multi-gear adjustment3. Volume gear: 4 gears4. Built-in battery: 40mAh lithium battery5. Charging time: 1-2 hours6. Working hours: 13-18 hours7. Ergonomically designed ear hooks, comfortable to wear, no ear pain8. USB in-line charging, more convenient to use9. Earplugs are available in four different sizes10. Sweat-proof and drop-proof, durable11. Support long-distance audio source reception, improve noise ratio