Specifications‎:‎Compatible with most devices that may utilize headphones‎.‎LED power indicator for power on and charging‎.‎360‎-degree sound field intergrates a cone design with a custom‎-built speaker to project sound in all directions‎.‎With 1.4 subwoofer‎,‎ the vacuum base offers deep and rich sound with HI‎-FI result‎.‎Pioneering patented technology‎:‎ extendable resonance of the bass box technology enables stronger effect‎.‎New concept integrative portable mini speaker‎,‎ with small bulk can play on the center of the palm‎.‎Embedded type lithium batteries‎,‎ can use USB or power adapter for charging‎.‎Built in‎,‎ rechargeable lithium battery each charge can last for 3 ‎- 5 hours‎.‎Type‎:‎ Speaker AmplifierOutput‎:‎ 2.4WRating Power‎:‎ 2.2WSpeaker‎:‎ 36mm Micro Speaker‎,‎ 4OhmFrequency Response‎:‎ 200Hz ‎- 20k ‎(‎Hz‎)‎Singal‎-to‎-Noise‎:‎ >89dbDistortion‎:‎