Universal Portable Mini Hamburger Bluetooth Speaker

Specifications bluetooth speaker 1.High quality stereo sound 2.Portable hamburger speaker 3.Speaker unit:2.5w, Universal portable mini hamburger  bluetooth speaker   PRODUCT  FEATURES: 1.Compatible with most devices that may utilize headphones2.LED power indicator for power on and charging3.360-degree sound field intergrates a cone design with a custom-built speaker to project sound in all directions.4.With 1.4 subwoofer, the vacuum base offers deep and rich sound with HI-FI result5.New concept integrative portable mini speaker, with small bulk can play on the center of the palm6.Embedded type lithium batteries, can use USB or power adapter for charging.7.More convenient and user-friendly, cost-saving pruphase batteries.8.Built in, rechargeable lithium battery each charge can last for 2~4 hours. Specifications  output:2.4w  Rating power:1.8w  Size:50wX50LX35H(mm) Speaker:36mm micro speaker,4OhmFrequency response:100Hz-2kHzSingal-to-noise:>85dB Distortion:<0.5%  Battery Voltage:3.7V Battery Charging voltage:4.2VCharge Time:DC(2.5hours),USB 4Hours  Pictures