Tested and working. This is a refreshing solar-assisted radio-controlled clock. It's a wall clock with a highly decorative design that features crystals and a white face, making it a beautiful addition to any interior. The box and instruction manual are not included, but you should be able to find instructions online. CITIZEN 4MY851-005 Discontinued product (¥27500) ▼Functions and Specifications Display Type: Analog Special Features: Radio-controlled clock Batteries Included: Yes Mounting Type: Wall-mounted Number of Batteries: 1 CR2 (※Included) Movement: Quartz Operation Mode: Radio wave Size: Width 34.6 cm, Height 34.6 cm Item Weight: 1.1 kilograms ※Regarding the battery: It is currently working, but the replacement time is unknown.