【DSP Technology & For Seniors】 This hearing amplifier is designed with the latest (DSP) technology, featuring noise reduction to suppress feedback and multi-channel refined audio processing for more natural sound quality. It can amplify sound up to approximately 30 times, making it ideal for seniors and a great gift for Respect for the Aged Day. Rediscover the sounds of the world freely. 【For Both Ears & Comfortable All-Day Wear】 Weighing only 6g, this hearing amplifier is lightweight and ergonomically designed for a safe and comfortable fit. It wraps around the back of the ear and hooks in place, so you don't have to worry about it falling out, and it's easy to use. Usable on both the right and left ears, you can enjoy comfortable hearing anytime, without discomfort or fatigue! 【Rechargeable & Long-Lasting】 This hearing amplifier is USB rechargeable, eliminating the need for repeated battery replacements. Simply plug it into the charging port to charge. It can be used for a long time on a single charge. You can go out with peace of mind, whether it's a walk in the park or shopping at the supermarket. It's the perfect combination for everyday needs. 【Easy to Use & Good Design】 The ergonomic over-the-ear design allows for a comfortable and effective fit in the ear. Specially designed for seniors, the hearing amplifier features intuitive operation buttons for easy and convenient use. All operations of the hearing amplifier can be done with a single button. Long press to turn on/off, and press once to adjust the volume. No complicated settings are required, so you can enjoy comfortable hearing!