BE NOTED: 1, When charging, the red battery symbol will be displayed statically on the screen with no flashing or moving. It's just a static symbol ! when charging finishes, the symbol will disappear. Charging will last around 4 hours. Use 5V1A or 2A power, DO NOT connect to high power fast chargers. We suggest it to be connected to DC power constantly in daily use. 2, It has sound control light up function. If you want the screen to display constantly, please keep pressing on the "C/F/LIGHT" button until a light symbol displays on the screen. 3, There are two knobs on the back. One for brightness adjustment, the other for sound volume. When you find no display or no sound, Rotate the knobs to adjust. 4, The radio has an automatic channel searching and keeping function. Remember to release the signal cable. Start by keeping pressing the second button with radio symbol on the top. When it finishes, press the big knob on the top to select and play radio programs. Rotate for fine-tuning. 5，When the battery full charged, it can work for 5 Hours ~15 days. Depends on the conditions how you use it. (Example: with FM radio at maximum volume and Screen at highest brightness level, it can last only around 5 hours.) The device is suggest to be connected to DC power constantly in daily use. >>>>>> Product Descriptions <<<<<< >>> Package includes: Clock * 1 USB Power Cable * 1 Instructions Manual * 1 >>> FEATURES: 1, Rechargeable FM Radio 2, LED Brightness Adjustable 3, Sound control backlight 4, Alarm Volume Adjustable 5, Dual Alarms with Snooze function 6, several tunes to be selected and the FM Radio Channels can be set as alarm ring. 7, display Time(12/24 HR), Temperature (℃ / ℉), Humidity, Calendar, day of the week. 8, Two output power USB interfaces 9, Memory function >>>Parameter: * Net Weight: 0.25kg * Clock size L*W*H(cm): 11.3 * 8.6 * 6.2 (cm) * Power: Rechargeable Battery + DC Power (Plug Not Included)

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