1. Bluetooth version: 5. 02. Support protocol: A2DP/HFP/HSP/AVRCP 3. Transmission distance: 10 meters 4. Frequency response range: 100Hz-18kHz 5. Speaker power: 5W 6. Power input: AC input 100-240V /50-60Hz; DC output 5V/2A transformer 7. Features: FM, Bluetooth playback, U disk playback 8. Weight: about 370 grams 9. Dimensions: 127x50x78 mmFeatures: 1. Front dual USB 2A current 1A current, for mobile phone and tablet charging 2. Rear TYPE-C interface, simple buttons and easy operation 3. Built-in FM radio module, can automatically search for radio stations with one key 4. Stepless backlight adjustment, automatic timing shutdown can be set 5. Short press the MODE button to switch the radio mode 6. Two sets of alarm clocks can be set, and the alarm sounds for a snooze minute by pressing and holding the top 7. High-definition 4.1-inch LCD digital widescreen display with a 25-degree angle 8. The alarm clock has four sound sources as alarm reminders, and the volume of the alarm clock can be adjusted ly. 9. Sleep automatic shutdown function, once every 15 minutes (can be set to 10/30/60/90/120 minutes automatic shutdown function) 10. With week, time, temperature, function mode display (12/24 hours can be switched) 11. 1 40-diameter internal magnetic full-frequency horn sound unit 12. Built-in temperature display sensor, which measures the actual temperature and displays it on the LCD screen, which can be set in Fahrenheit and CsiusPacking list:- Main unit x 1- Power adapter x 1- Manual x 1- Packaging box x 1