💡【Long Lifespan & Quality Assurance】 COLSUR 3 in 1 music lamp has a long lifespan for more than 50000 hours, no bulb changing troubles in the next 10 years, environmental and energy-efficient. Office lamp perfect for home, office, study etc. And we offers 12 months Quality Assurance Service. Please feel free to contact us if you have any questions about desk lights before or after purchase. We will get back to you within 24 hours. 💡【Easy Control & Charging Indicator】Led desk lamp provides one-button operation knobs for easy control of lights and speakers. When wireless charging lamp is powered on, the indicator light will flash twice. When using the wireless charging function, the indicator light will stay on for one minute and then go out. When a foreign object is detected, the indicator light will flash quickly. 💡【Bluetooth 5.0 & Powerful Speaker】 COLSUR Bluetooth speaker uses Bluetooth 5.0 technology, which has faster transmission speed, longer link distance, better sound effect, and more power saving. The speaker cavity vibration effect is obvious, with powerful sound effects, bring you aural shock. 💡【Wireless Charging & 15W Max】COLSUR Desk lamp with wireless charger provides fast-charging up to 15w, and we send a 9V/2A QC3.0 adapter. Wireless charger is compatible with any Qi-enabled devices, Such as Apple iPhone 13/13 pro max/13mini/12/11/X/8, Samsung S20,S10, HTC 8X, LG G3, SONY Z4Y, etc. 💡【Stepless Dimming & Eye-Caring】COLSUR Desk lamp has 3200K warm white lights (suitable for reading, sewing, working, studying) and stepless adjustable brightness with adjustable lamp holder, up and down is 90°，left and right is 60°, providing you with precise lighting. 36 high brightness LED beads within the led desk lamp with soft light, no blue light, no flicker, no shadow. Less straining to your eyes, great for work, read and study for a long time.