The bluetooth speaker equips with 24w of stereo audio drivers speaker and advanced digital signal processor, The wireless LED Bluetooth speakers not only a speaker but also as a unique night theme light, it provide different color-changing themes With the top-of-the-line rechargeable li-ion battery, the bluetooth speaker boasts an unbeatable 30 hours of continuous music playtime or make calls time(built in Microphone Waterproof protection safeguards against rain, dust, snow, and spills, even the outdoor speaker can be fully immersed up to 3ft for about 30 minutes underwater Perfect for showering, hiking, camping. No worries about weather and outdoor condition, be the Rocker on your trip. Specification: Product Name: robot wireless Bluetooth speaker Power input: Micro USB Rated capacity: 900mAh (max) Rated voltage: 5V 600mA Rated power: 2W Charging time: 2 hours Working hours: 8-9 hours Net weight: 83g Product size: 74x51x50mm/2.9x2x2 inch Effective distance: 8 meters Bluetooth version: 5.0 Package Includes: 1x Bluetooth speaker 1x Micro USB Cable 1x Lanyard