Bluetooth Speakers: 01 Audio Duo T2 Portable Wireless Speaker, 12 Months Warranty, IPX4 Water Repellent,High-Definition Sound Quality with 10 Hours Playtime for Outdoors / Indoor Entertainment RichandHigh-DefSoundQuality:2xHi-Ficomparablespeakersengineeredwith3Ddynamicsoundtechnology,hundredtimesofteststofindsuitablematerialforconediaphragm.CollaboratingwithpassiveS-Bassradiator,ensurehighdefinitionsoundwithexceptionalbassfromDuoT2Bluetoothspeakers. Suitable for outdoor: IPX4 standard offers protection from from water splashes / light rain showers, daily wear, dust & dirt. Long Playtime, Fast Recharge: With 1800mAh built-in Lithium-Polymer battery, you can enjoy 10 hour of non-stop music at 80% volume, three times longer than similar-sized portable speakers. Recharge in just 5 hours using the original 01 Audio Micro USB cable. Incredible Direct Reading Mode : it could automatically play the music with a stand alone Micro SD card. (the Micro SD card does not include in the package). Broad Compatibility: Quick pairing through Bluetooth with iPhone, iPad Mini, iPad 4/3/2, iPod, Blackberry, Nexus, Samsung and other popular smartphones.