Wireless Speaker, Portable Bluetooth Speaker, I-Venstar Surround Sound Stereo BoomBox Duo Buddy Speaker Set with 12+ Hour Playtime Battery Life 6W Watt Dual Speakers Ultra Bass

"Tempo" shape maximizes the sound quality and energy efficiency, dual acoustic chambers &radiators deliver ultimate sound and extreme bass. Unimaginably, if you buy two speakers together, which can enjoy the Surround Sound included Stereo Right and Left Surround. With it you can easily setup a simple yet powerful wireless stereo surround-sound music experience anywhere. Additionally, the two speakers can function independently with each providing full stereo sound from their own source of music, generating an amazing experience where ever it goes.

Technical Specification:
Power supply: DC5V/500mA-2.1A
Battery capacity: 1400MAH
Audio drivers: 2 x (φ40mm,4Ω，3W(RMS)
2 x (φ45mm passive radiator)
Wireless: Bluetooth 4.1 and NFC field communication
Frequency: 80Hz-20000Hz

What's in the box :
1 x Bluetooth speaker
1 x USB cable
1 x 3.5mm Aux Line-in Cable
1 x User Manual
1 x Protective Cap Bag
1 x Non-slip Mat

Warranty:
Every I-Venstar Product includes a 45 Day refund, 18-month, worry-free Guarantee!