Specifications:

Speakers

* Driver: 40 x 70 mm/ 1.5W X2@4 ohm

* Power Supply: 4 x AA Battery ( 6V )

* Battery Life: Max. over 70 hours

* Function Control: Power on/off

* BT Control panel: on/link/off, vol+, vol-

Backpack

* Color: Red/Black

* Size: (HxWxD) 48x37x37cm

* Fabric: 600D Double Nylon

* Lining: 420D Nylon Coating/ Black

* Tape: PP Black

* Zipper: Nylon Regular    

* Foam: EVA & PE Foam

* Buckle: Plastic / Black Regular

* Capacity: 16 L

Features:

* Ventilate carry system design.

* MP3, CD player suitable for use.

* Safety light refection bar design.

* Mesh pockets design.

* Waterproof zipper design

* Superior class-D digital amplifier.

* Unique water proof speaker sets in the straps.

* Easy link Blue Tooth mobile with AP-803HB by one switch.

* When someone calls by mobile could easy talk by AP-803HB.

* When end of talk, the system will switch to music automatically.