The Miccus Pool Party SPX9 is a Rainproof, water resistant Bluetooth wireless speaker system that features the latest in water protection. Perfect for use in the indoors or outdoors, at the beach, by the pool, in the garage and more. 2+1 means that in addition to the 2 front fired speakers there is a rear mounted bass radiator to give you full fidelity in a portable all weather package. The SPX9 pairs easily with any Smartphone, tablet, PC or other transmitter that supports stereo audio (A2DP) over Bluetooth wireless. Need to take a call? No problem. The SPX9 has a built-in microphone; when paired with your smartphone, you can send and receive calls. Perfect for not missing a call and for those impromptu conferences. The Miccus Pool Party SPX9 is one more way to simplify your mobile lifestyle.Contents of the Package include: Miccus Pool Party SPX9, 3.5mm to 3.5mm audio cable, USB Charging cable, AC Wall Adapter, Mesh Carry Bag, User Manual, 1yr Limited Warranty.Technical Specifications: Bluetooth V.3.0 + EDR, Class ll, Range 33ft (10M), Frequency: 2.4 GHz. Supported profiles: A2DP (Music), AVRCP (Controls), HFP (Hands-Free voice). Power Input: USB 5V DC@500mA or higher. Speaker output: 5Wrms.