PLUG and PLAY: The 3.5mm Aux jack makes it much easier to play the music whenever you want through the iPhone, iPad or iPod. No more worry about the "Bluetooth disconnected".COMPACT SIZE with HIGH SOUND QUALITY: With the compact size as small as half a credit card, this product has a 3W speaker in 27mm 8ohm and SNR>90db to keep the high sound quality with clear bass.COMPREHENSIVE COMPATIBILITY: This line in speaker could be used to most of the smartphones with 3.5mm aux port, even the ones with phone cases. It is also suitable for the desktop/laptop computer, tablet/pad, MP3/MP4, TV or PSP without connection or paring issues like the bluetooth ones.LONG BATTERY LIFE: This portable mini speaker has a 250mAh RECHARGEABLE Li-ion battery built in to deliver around 8 hours playing time. Once idled for 5 mins, auto-off function will work to save the power. Once battery drained out, only 45 mins needed to get a full charge through the Micro-USB port.Produktbeschreibung Color Name:Black Product Notice: a silicon rim is placed on 3.5mm audio plug, please remove it if necessary -- Output power: 2W -- Speaker Spec: 27mm 8? -- Frequency: 20Hz-20KHz -- Battery capacity: 3.7V/250mAh -- SNR: > 90dB -- Enlarge phone volume more than 3 times -- Material: plastic/silicon -- Size:42.5*58*31.5 mm, 42grams or 1.67*1.24*2.28 in, 1.44Oz -- Stylish uni-body design, truly ultra-portable, pocket size speaker-- Simple turn on speak and plug into 3.5mm audio jack, no Bluetooth pairing, no waiting -- Original imported from China, minimalism package -- Clear sound with decent bass, enjoy your music anywhere you go -- Charging with micro USB cable -- Works with almost any devices with 3.5mm audio jack