SOS Ultra Portable Bluetooth 2.0 Speaker Weather-proof /Splashproof/ Dust-proof and Shockproof Stereo Rechargeable Wireless Bluetooth Speaker Foroutdoors/shower with NFC Tap & Play Technology and Support Mic Hands Free for Phone Calling Wireless(army Green) Bluetooth 2.0 upgrade 4.0 Technology - Connect your device in 3 seconds and delivers crystal clear sound;Consumes less energy with rechargeable built-in lithium battery offers up to 12 hours of uninterrupted playtime on a single charge.Outstanding connection range of up to 33feet(10M). Designed as a Outdoor Speaker - Unique Rugged Square Design with Dustproof&Shockproof functions,suitable for parties, BBQs, and especially for outdoor activities like camping,mountain climbing and picnics.Especially when you are lost in the nights or the car broke down at high speed, our bluetooth speakers have a SOS lights and emergency lights Doubles as a Shower Speaker - Splashproof function let you listen to your favorite tunes and built-in microphone let you answer the phone while showering and still be able to control all the functions without having to step out of the shower. Broad Compatibility and NFC technology - Automatically connect to the last-connected device when turned on enables one-step music streaming;Compatible with all Bluetooth-enabled devices (2.1 and over). 3.5mm audio port for non-Bluetooth devices.Tap-to-pair with NFC technology for easy and instant connection (If your bluetooth audio device has NFC function). Package contents:Portable Bluetooth Speaker, micro USB cable, 3.5mm audio cable,lanyard , User Guide.