● Invisible High-Quality Hearing Aid Sound Amplifier – Enjoy clear sound with a discreet design. 👂

● Super Mini & Lightweight – Compact and easy to wear without being noticed. 🧳

● Adjustable Volume – Customize sound levels to suit your needs. 🔊

● 3 Earplug Sizes Included – Choose the best fit for comfort and stability. 👂🔧

● Gradual Volume Increase – Avoid sudden sound spikes for a smooth listening experience. 🎶

● Perfect for Movies, Meetings, & Classes – Hear clearly in any setting, from entertainment to learning. 🎥📚

● Max Sound Output – ≥110 dB ± 5dB with a max sound gain of ≥30 dB ± 5dB for powerful amplification. 📢

● Frequency Range – 300–4000Hz, with minimal noise at ≤40 dB for clearer hearing. 🎧

● Battery – Powered by A10 button battery (included) for long-lasting use. 🔋

● Working Voltage – 1.5V, low current of ≤3mA for energy efficiency. ⚡

● Authentic Product – Reliable quality for better hearing. ✅