Thank you for viewing! ◯ Brand new, unused item ◯ Free shipping ◯ Fast shipping ◯ Immediate purchase is welcome Please also take a look at this Product Description 【Industry-first balanced armature type speaker!】 While most in the market are dynamic speakers, balanced armature types are more suitable for hearing aids due to their features of being small, high-resolution, and energy-saving, offering clear advantages. ➊ Overwhelming high-frequency resolution. The frequency response exceeds 8 kHz, improving voice clarity by over 30%. ➋ Amazing miniaturization. The unit volume is only one-third of that of dynamic types, making it lighter and more comfortable to wear. ➌ Excellent energy efficiency (impedance of 100Ω or more vs. dynamic types of 16-32Ω), reducing power consumption by about 40% at the same volume. ➍ Superior environmental resistance. Magnetic shielding of 80dB or more shuts out electromagnetic interference. Stable sound quality in any environment. ➎ Long-life design. No deterioration of the diaphragm, maintaining clear sound for a long time (lifespan of dynamic types: about 3 years). 【Amplification of about 35 times & comfortable fit】 Equipped with the latest DSP technology, it amplifies the volume up to 35 times while reducing noise by 65%, distinguishing between human voices and surrounding sounds to improve voice clarity. It weighs only 4.5g and features an ergonomic design, providing a comfortable fit that is not tiring even after long hours of use. It goes around the back of the ear and is hooked to secure it, so there's no worry of it falling off, and it's easy to use even for elderly people who are not used to wearing earphones. You can enjoy comfortable hearing anytime, without discomfort or fatigue! 【Stepless volume adjustment & easy operation】 Scroll the manual volume adjustment knob up to increase the volume. Scroll down to decrease the volume. Fine-tune the volume to your preference and the surrounding environment, and select the optimal volume to enjoy clear sound quality. The buttons are designed to be easy to use for the elderly, with intuitive operation. No complicated settings are required, just turn on the power and it's ready to use. It's easy to use for beginners and the elderly. (To prevent howling and echo. After wearing, switch