Specification: Item Name: Large Screen Alarm Clock BT Speaker BT Version: V4.2 Output Power: 3w*2 Battery Capacity: 2200mah Charge Time: about 3hours Standby Time: about 72hours Material: Engineering plastic Product Size: about 14*8*5cm/5.52*3.15*1.97inch Color: Black | Gold | Rose Gold | Rifle Grey Note: Please allow slight 1-3cm(0.4-1.18") difference due to manual measurement and a little color variation for different display setting. Package Includes: 1 x Alarm clock speaker 1 x USB cable 1 x ManualThermometer Function: Digital LED alarm clock with a sensitive indoor thermometer, intelligent identity of the environment temperature in your bedroom or living room(display in ?). USB Rechargeable: Built- in 2200 mAh lithium battery, after repeated testing, low energy consumption, safe and stable performance, just charge 3 hours, you can play music for 8 hours, standby time to 72 hours, and lasting power for continuous music. Multifunction Design: The large screen alarm clock plays multiple roles: Alarm Clock, Thermometer, Radio, Wireless Speaker (BT/U-disk/TF/AUX playing), embedded with an FM radio function to allow you to listen to your favorite radio station. Let this large-screen digital alarm clock with abundant functions enrich your life and bring you much fun and pleasure. Wireless Speaker: Digital alarm clock provides you music feast as long as you wanna have, with HiFi stereo stunning sound performance, super deep bass, high- pitched, double- voicing unit, high- power dual speakers plus bass diaphragm, bright and undistorted sound explosive power, let your ears enjoy the music and bring good fun. Built- in MIC, support hands- free call. Dual alarm Clock: Wake up you snooze, you can set two hours, free time, multi- function operation, simple but not average so that you get up every day have new expectations. With a large LCD screen, which is clear and bright so that it can be used as a makeup mirror, also a good decoration for your bedroom when placed on the nightstand.