Music is a super companion for humans, which can make you relaxing and enjoy colorful life. The high-performance speaker is specially designed for music lovers, which is characterized by Advanced Bluetooth 4.0 technology, Built-in high-grade microphone &amp; 2 * 5W speaker, hands-free function and 3.5mm Audio Input Port. The Portable Bluetooth Speaker offer you wonderful music, you can greatly enjoy your favorite Musician, a super companion for you during daily life and travel. <br><br><strong>Features:</strong><br>[Advanced Bluetooth Technology] <br>Bluetooth 4.0 technology enables reliable wireless signal transfer in top quality and high speed, Easy to pair with almost all Bluetooth-enabled audio / music player devices, such as, Android / iOS Smart Phones, Tablet, Notebook, desktop, etc. <br>[2 in 1 Multifunctional]<br>Integrates Wireless Stereo Bluetooth 4.0 technology and 3.5mm audio Wired Connection Design, the included 3.5mm audio jack provides a simple wired connection of a variety of music players (Such as, MP3 / MP4, etc.) without Bluetooth function, you can greatly enjoy favorite music anytime &amp; anywhere.<br>[Powerful Speaker &amp; Super Sound Quality]<br>This Bluetooth 4.0 speaker provides strong bass and loud sound with built-in 2 * 5W driver &amp; bass radiator and A2DP/AVRCP support. The best choice for listening to music, watching movie, etc. <br>[Ultra-long Standby &amp; Playing Time]  <br>Ultra-large Capacity 2200mAh Rechargeable Battery allows you playing music up to 6 hours (almost all day) and 72 hours of standby with a single charge. More importantly, Additional emergency power supply with max up to another 2200mAh, can charge your cell phones when in urgent need in outdoor.<br>[Durable &amp; Portable Design &amp; Easy to use] <br>Comes with Aluminum Alloy Case &amp; compact portable size, easy to carry, and independent function button Design, you can easily control the volume (+) / volume (-), Previous Track / Next Track, etc. <br><br><strong>Specifications:</strong><br>Bluetooth version: Bluetooth 4.0 + EDR, Class 2<br>Support profiles: HSP, HFP, A2DP, AVRCP<br>Frequency Range: 2.4GHz ~ 2.48GHz<br>Operation Range: 10m (free space).<br>Frequency Response: 90Hz ~ 18KHz <br>Signal-Noise-Ratio:&gt;65dB<br>Output (THD10%): L:5W, R: 5W. <br>Degree of separation: L/R: 56dB /54dB<br>Noise: &lt;0.1MW<br>Speaker Diameter: 52mm <br>Interface: 3.5 Audio Input port, Micro USB Port. Output Standard USB Port.<br>Battery: Built-in rechargeable 2200mAh lithium battery<br>Music Time: About 6 hours<br>Talk Time: 6 hours <br>Standby Time: 72 hours<br>Fully Charge Time: About 3 hours.<br>Charge Port: Micro USB Port <br>Color: Silver<br>Main Item Size: 19.5 * 12.0 * 4.0cm / 7.67 * 4.72 * 1.5in <br>Main item weight: 646g / 22.7oz（Bare Machine）<br>Package weight: 28.0 * 14.5 * 5.5cm / 9.44 * 4.13 * 3.14in<br>Package size: 830g / 29.3oz<br><br><strong>Package List:  </strong><br>1 * Stereo Bluetooth Speaker<br>1 * USB Cable <br>1 * 3.5mm Audio Cable <br>1 * English User Manual