Note: Please remove the silver transport lock pin at the back of the battery compartment before first use. Instructions: After the battery is properly inserted into the battery slot, remove the radio clock position pointer and then quickly reset it to the 12 o'clock position with the second hand. Then the hour and minute hands at 12 o also quickly and automatically reset to zero. Clock (If the reset is not good when switched on, press the RESET button again.) The whole process takes about 4 to 6 minutes. After zero setting The hour, minute and second hands no longer move and at this time the condition of the automatic wave signal reception (initially time-controlled state). After about 3 to 12 minutes of reception time, when the correct time signal is received, the pointer rotates quickly and shows the correct time position. If the watch has not received a proper signal on the day, it will seven Receive signals once a day 1:22 ', 3:22 ', 5:22 ', 9:22 ', 14:22 ', 17: 22 ', 21:22 ') Specification: . Material: metal + acrylic + plastic Powered by: 1 x AA battery (not included). Product size: 30 x 30 x 4 cm. Product weight: 670g. Package contents: 1 x alarm clock. 1 x radio waves, English user manual (English language not guaranteed).