Cearvol Hearing Amplifier DiamondX1 Bluetooth 5.3 [Color] Black [Dramatically Improves Hearing!] Amplifies sound up to 30dB, supporting the shift from "hearing" to "clearly understanding." This allows for a clear understanding of content. Smooth conversations in one-on-one settings, gatherings with family, and talking with children. [Effectively Prevents Feedback!] Three sizes of ear tips are provided, allowing you to choose the size that fits your ears comfortably, preventing them from falling out and sound leakage. Furthermore, the close-fitting ear tips firmly suppress sound leakage. In addition, an advanced algorithm suppresses unwanted sound reflections, achieving clear hearing. Triple protection against feedback! [Music, Calls, and Video Viewing All in One!] Equipped with Bluetooth 5.3, easily connects to iOS and Android devices. You can comfortably enjoy music playback, calls, and video viewing with this single device. Furthermore, it can be linked with smartphones, laptops, tablets, and BT TVs, and can connect to two devices simultaneously. Switching instantly makes busy days even more convenient! [Achieve Sound Tailored to You!] Equipped with a hearing test function that provides individually optimized hearing. Easily perform the test with the dedicated app, and the results are displayed clearly in a graph. Based on this data, the sound is automatically adjusted, and fine adjustments are also possible with the equalizer. [Easy Operation for Seniors and Young People & OTA Technology!] With 10-level volume adjustment, fine settings are possible, achieving optimal hearing. Also supports independent left and right volume adjustment, allowing comfortable use with a balance tailored to each ear. Furthermore, equipped with the latest OTA technology, remote management and updates of the device can be done using wireless communication, always providing optimal performance. [Long-lasting Battery for Peace of Mind!] Supports fast charging, with 3 hours of use from a 10-minute charge. Up to 12 hours of continuous use on a single charge, and up to 36 hours when combined with the charging case. Can be used with peace of mind even during long outings or busy daily life. $$18880..r11343