Large Screen Clock Bluetooth Speaker Double Alarm Clock With RGB LED Changing Aperture Double 5W Booming Sound 4 PlayMode FM Support-Card Features: Large Screen Clock - Equipped with dual alarm clock mode, it is sound, clock and alarm clock. Outdoor/indoor sound: Booming sound is delivered by two 5W tweeters. Incredible sound loved by MOST people. Lightweight and ultra-portable: Take your tunes everywhere with the detachable strap. 8-Hour Play-time: Outdoor speaker is equipped with 1200mAh battery capacity with 8-hour Play-time to save you the trouble of frequent charging and make listening more ENJO-YABLE. 4 playing mode - AUX mode/-card mode/FM radio mode is not just for Bluetooth connection, but also for enjoying music as you like. Product Description: Product model: S7 Output power: 3W THD=10% Frequency response: 80Hz-20KHz Signal to noise ratio: ≥ 85dB Distortion: