Can be configured to automatically turn on the radio or FM radio, and the clock radio can set the alarm schedule, and it has the repeat function. Perfect for older people or people in sight. With the easy-press dimmer button, you can adjust the sn brightness to a high or low level. The clock radio features automatic / FM button search for all channels. And it has 5 favorite channel storage buttons to quickly set up and listen to favorite channels. Sleep on the radio using the programmable sleep timer. Sleep timer duration is 10-90 minutes optional. Similar products all use pigtail antennas to reduce the size of the clock. You can flexibly adjust the position of the antenna to obtain the Product information tuning range:170-240MHz FM tuning range: 87.5-108MHz 5 preset stations & 5 FM preset stations Clock setting: Auto synchronization by or setting manually Alarm timer: dual alarm Alarm mode: /Buzzer/FM Display: 3.5' LED display Speaker: 8, 2W Backup battery: AA x 3PCS (not include) Power supply: DC-in 5V 2A (power adapter no include) Power out: 2 USB out power to other device operation power: 1W How to use 1. Install batteries Open the battery compartment Close the battery compartment 2. Connect power Please use anyone phone charging adapter( can supply 5V/2A USB output) supply power to the radio Use the USB-DC cable 3. Supply power to phone or other device when the unit is powered by AC adapter, it can power to phone or other device by 5V OUT1/2 USB port on the back of the unit Note: When the unit is powered by batteries only, It only works for a few hours. when the or FM is on, can' to other device. size:135 x 65 x 55mm Material:ABS colour:black Package Contents: 1 * Alarm clock 1 * USB data cable Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.