[Newest Outdoor&Waterproof Bluetooth Speaker] Mobie mobiecube Boom Box Portable Bluetooth 4.0 Speaker, with 5200mAh Power Bank/ Mic / NFC Function Bluetooth speaker that will recharge your cell phone Features Near Field Communications (NFC) technology which allows for easy, one-touch pairing by simply tapping your NFC-enabled Bluetooth smart device on the speaker New 2 in 1 function. Powerful 4400mAh built-in polymer lithium battery provides up to 10 hours of playback time standard USB jack can be used as a power bank, that you can enjoy your music the same time power your electronics Bluetooth 4.0 and CSR chipset connects faster, more stable, compatible with all your Bluetooth-equipped devices