ORBIT by Rockstone Audio offers you the latest audio technology with left and right stereo sound for a comfortable listening experience. We have made sure to use the highest quality material to provide you with a stylish, durable, portable and lightweight speaker. You can rest assured that the ultra-loud 3W speaker is protected by the heavy-duty aluminum body. With Dual microphone in the speakers, you will never miss a call when your phone is out of reach as you can receive calls from the speaker itself. For your convenience, we have included a charging dock so you can charge both your speakers at the same time. Features: Upto 3 hours playtime True wireless stereo  Frequency Response: 20HZ-20KHZ Total Harmonic Distortion: <1% Signal-to-noise Ratio: 80DB Speaker Parameter: 6W (3W each) Diameter: 36mm Battery Size (each): 3.7V/400mAh Bluetooth Version: V4.2 Product Weight: 70g Package Content: 2 Speakers, 1 Base and Micro USB Cable.