Bluedio BS-2 (Camel) Mini Bluetooth Speakers Portable Wireless Speakers 3D Surround Sound System (Black) 1. Small and light: The first thing you will notice after you unpack is the size, BS-2(Explorer) is quite small, its only 7.162.362.05 in dimensions. When you hold it in your palm, you would notice its light too, it only weights 9.98 oz. All these make it easy to take BS-2(Explorer) with you anywhere. 2. Full music experience: BS-2(Explorer) has two exclusive speakers and bass diaphragms inside, to bring you full music experience: deep bass and clear highs. And if you turn on the 3D sound effect, you would feel as if in a concert. PS: The volume is not the loudest but can easily fill a large room. 3. Bluetooth 4.1 chip: Bluetooth 4.1 chip is the latest Bluetooth chip. It can transmit data at high speed and bring you smooth music experience. And its low power ensures long lasting battery life: up to 7 hour continuous music time. Also it works well with most mobile phones like iPhone/HTC/Motorola/LG/Samsung 4. Simple and stylish: The design is quite simple and stylish, because we believe that simplicity will never be out of date. And BS-2(Explorer) is released in 4 classic colors: black, white, gold, silver, you can pick out anyone you like. 5. Clear calls: BS-2(Explorer) uses acoustic echo cancellation for calls, a technology which can help to cancel echo and bring you clear calls. Never miss a call when youre enjoying music.