AI-Powered Noise Cancelling for Crystal-Clear Conversations:Advanced voice separation technology reduces background noise in real-time, letting you hear nature sound with advanced AI technology. Invisible & Comfortable True Wireless Stereo Design – Discreet in-ear style blends seamlessly like wireless earbuds for natural, confident wear. Featherlight at just 0.42 oz for comfortable all-day use. Long-Lasting Power, All-Day Confidence – The rechargeable battery reduces the need for battery replacements and offers easy everyday use. One full charge provides up to 10 hours of listening, and the portable charging case adds 20 more, giving you a total of 30 hours of reliable power App-Controlled Customization:Adjust volume, EQ, and sound modes through the intuitive Otoadd mobile app (iOS & Android compatible). Built-In Rechargeable Battery – Designed with a long-lasting lithium battery that lets you avoid frequent battery replacements for a more convenient, hassle-free daily experience. Otoadd F1-S OTC Hearing Aids for Seniors deliver up to 65dB amplification for mild to moderate hearing loss. Featuring a rechargeable battery with all-day power, these devices remove the need for disposable batteries. Bluetooth app control (iOS & Android) allows quick volume and sound mode adjustments, while AI noise reduction enhances voices and reduces background noise. The discreet, invisible design ensures comfort, and 3 cleaning brushes are included for easy maintenance.