Features: – Bluetooth: – Version: 5.0 – Profiles: A2DP, AVRC – Range: 10 m – Chipset: JL – Frequency Range: 100 Hz – 16 kHz – Sensitivity: 87 dB ± 3 dB – Battery: 3 000 mAh – Total Power Output: 15 W RMS / 22 W Peak – Max. Size for USB Drive: 32 GB – Playback Time: 2.5 Hours – Driver: 2 x 3″ – Charge Time: 5 Hours – Impedance: 4 ? What’s in the box 1 x Speaker