No Need for Exams, Testing, Fitting, and Adjusting, These are Cost-Efficient and Ready to Use Out of The Box and Can Dramatically Improve Sounds! Hearing problems can adversely affect the quality of life. Regardless of the cause, you shouldn't suffer in silence. A great solution is the MEDca personal sound device or hearing amplifier. MEDca sound amplifiers have built-in sensors that can identify when you insert them in your ears and will automatically turn on. The amplifiers will switch to standby mode whenever you remove them. Lasts Up to 36 Hours on A Full Charge! The MEDca rechargeable hearing amplifiers can last up to 36 hours of use on a full 8-hour charge. Great for those always on-the-go since the charging case can charge the device up to 3x. With its noise reduction, feedback cancellation, and balanced armature drivers, you get consistent audible speech and sound clarity wherever environment you're in. Being IP53 rated, you'll be able to use the amplifiers while performing outdoor activities. Easy to use because of the automatic in-ear detection, no need to fumble with any buttons or switches. Lightweight and compact, wear these for hours without any discomfort and enjoy life as you're used to. KEY FEATURES: - Set Includes: ITE Nano Hearing Amplifier Set (2 Pieces), 1 Charging Case, 1 Micro-USB Cable, 3 Pairs of Ear Domes (S, M, L), Cleaning Brush, and Manual - Max OSPL90: ≤120dB+3dB - High Frequency Avg: 108dB±4dB - Maximum Gain: 27dB±5dB - EQ Input Noise: ≤29dB+3dB - Total Harmonic Distortion: ≤7%+3% - Frequency Range (not narrower than ): 450Hz~4000Hz - Small & Lightweight Design - Rechargeable Lithium Battery and Magnetic Carry Case - Battery Life: Up to 36hrs - Hearing Aid Dimensions: 18mm x 17.1mm x 21.8mm