the sound of london jazz powers volume 2 1 cd

1. This hearing aid is specially designed for the elderly or people with hearing problems, suitable for those people or patients with hearing loss.2. Low power consumption, high fidelity, high-quality chips, and invisible flesh-colored surface will not appear incongruous in the crowd.3. With volume control function, the volume can be adjusted to meet your own needs and preferences.4. Built-in battery power supply, smaller, simpler, more convenient, more powerful and more stable.5. With digital circuit and automatic noise reduction technology, the sound is natural and brings you a comfortable experience.6. Ergonomic earplug design, even if you wear it for a long time, you will not feel pain. Specification:1. Material: plastic 2. Battery: 1 A10 battery, 1.4V, 1.2mA3. Maximum sound output: 122+/-3dB4. Sound gain: greater than or equal to 28dB+/-2dB5. Total harmonic distortion: less than or equal to 3%6. Frequency range: 300-4800MHz 7. Input noise: less than or equal to 26dBCaution: To avoid accidental swallowing by children, keep small parts out of reach of children