dBs Vibe Series Wireless Bluetooth Speaker with Mic V4.0 Self Powered Speaker for iPod, iOS, Android, PC and Mac Portable Speaker Black With Bluetooth version 4.0, these are the best mini Bluetooth speakers. It operates within 10 meters from the device it is connected to and holds a charge for up to 10 hours. This portable Bluetooth speaker only needs 3 hours to charge and it is ready to use. The dBs Vibe have 2 x 2W speakers. This makes the sound loud and clear. These are perfect for conference calls with the built-in microphone. It is great for meetings, webinars or training. Its splash proof safety rating is IPX4 so it can with stand splashes of water from any direction for 5 minutes. It is the best wireless speaker for pool parties or beach vacations. These speakers are compact and have a provision to hook the speaker to your backpack (hook not included). It comes in a stylish matte black finish. The controls are easy to access and use. No need to access your phone to change tracks or turn up the volume. Major Bluetooth profiles supported including HSP (Headset Profile), HFP (Hands-Free Profile), A2DP (Advanced Audio Distribution Profile) and AVRCP (Audio/Video Remote Control Profile) gives a wide variety of devices you can connect to. Extensive music and talk time with Bluetooth 4.0. The dBs Vibe outdoor speakers with microphone have a music time and talk time of up to 10 hours and operating distance of up to 10 meters. Maximum 3 hour charge time via Micro USB.