Main Features:  -360° surround sound effect, enjoy clearer sound.  -Honeycomb design, audio dust-proof net cover, full front audio coverage.  -Bluetooth connection, effective distance within 10 meters.  -FM radio, you can listen to your favorite radio programs during exercise.  -3D sound effects, fidelity sound quality enjoyment.    Specification:  Shell Material: Metal;  Box Material: Plastic;  Color: Red / Blue / Black / Silver / Gold;  Interface Type: Micro USB;  Frequency Response Range: 100HZ-20KHZ;  Output Power: 5W*2;  S/N Ratio ≥75dB;  Channel: 2;  Expansion Storage: 32GB;  Play Time: 2 hours;  Bluetooth Protocol: 2.1;  Number of Speakers: 2;  Effective Distance: 10 meters;  Play Format: MP3;  Operation Mode: Button;  Battery Information Battery Type: Li-ion battery;  Battery Capacity: 1200mAh;  Dimension Package Weight: 0.84kg;  Product Size: 40.00 x 7.00 x 5.00 cm / 15.74 x 2.75 x 1.96 inches;    Package Contents:   1 x Sound Bar;  1 x USB Charging Cable;  1 x AUX Cable