loudest portable bluetooth speakers Portable Bluetooth Speak

"Piano paint, scratch-resistant, bright colors.
6 core magnetic speaker with full frequency, highly sealed, accuratge distance between outside speakers and tailgate, 360-degree surround sound, bass shock, powerful, treble loud, extremely wealthy penetration.
Bluetooth audio input, bluetooth handsfree, support iPhone iPad and all Bluetooth-enabled mobile phones, Mp3, support USB TF, FM FM stereo.
DC: 5V (USB) 800mAh lithium polymer battery,playing time over 5 hours.
Bluetooth connection, 30m accessible
Built-in microphone, clear voice
Weight of speaker: 230g
Audio interface: 3.5mm
Bluetooth version: Bluetooth3.0+RDA
Working frequency: 2402-2480MHz.limit distance:10 meters
http://www.aiyetech.com
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loudest portable bluetooth speakers Portable Bluetooth Speak