I bought two alarm clocks for our bedroom. At the reception, I was very satisfied with the design, I moved them, they work perfectly. The bad surprise came at night, we quickly realized the electric hum that produced the two devices. They are super noisy and the sound seems amplified night ... I ended up unplugging. No luck, in my enthusiasm, I had already laid the packaging in the garbage, I could not return them. I highly recommend this model.