Product features: 1.Max sound output:110±5dB 2.Sound gain:≥30dB 3.Total harmonic wave distortion:≤10% 4.Frequency range:300Hz～4000Hz 5.Input noise:≤40dB 6.Voltage:D.C.1.5V 7.Current:≤4mA CaHeaTo G10 is the revolutionary sound amplification system that is affordable and discreet. Lightweight and compact, you won't even feel like you're wearing it. Whether you're in the theater, watching TV, listening to soft music or just having a quiet conversation, you will hear loud and clear. While some hearing devices can cost hundreds or even thousands of dollars, CaHeaTo G10 is a remarkable value! Say goodbye to the frustration and embarrassment that comes with not being able to hear properly and say hello to CaHeaTo G10 -Put the amplifier in your ear tightly and move up and down to ensure right position-If you feel whistling sound please make sure if you put the earplug tightly or if you use an appropriate size earplug -If sound is weak check the earplug weather blocked or not -sound amplifier does not work, decrease volume, turn amplifier on change batteries, increase volume ,clean earplug. -Please don't use hearing amplifier at a high volume for a long time it will damage your hearing -Please maintain the product all the time in order to avoid the earplug and microphone opening being blocked by foreign objects -Please don't use when showering or raining environment -Please don't expose the hearing amplifier under sunshine -Please avoid dropping
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