【Crystal-clear display with 6 brightness levels】This compact digital clock features an extremely clear display with 6 adjustable brightness levels, ensuring perfect readability in any environment. It's ideal for your bed, desk, or bedside. Note: The clock can only be powered by an electrical outlet. Batteries cannot operate the clock; they only serve as a memory in case of a power outage. 【Very loud alarm with 5-level sound power adjustment】Wake up to your preferred alarm sound, ranging from a gentle 65 dB to a powerful 85 dB. Adjust your alarm experience and start your day with the right sound. 【USB-C plug clock with memory function】Universal compatibility with a USB-C port and two AAA batteries ensure your clock retains the time and settings even during a power outage, saving you from worry. (Two AAA batteries are not included) 【Easy-to-use controls on the front panel】All buttons and settings are conveniently located on the front panel, making this digital clock also very