Volkano Barrel Series Bluetooth Speaker Bluetooth Speakerphone Shoulder Strap Up to 6 Hours Playtime 35 W Peak Power Bluetooth Profiles: HFP, HSP, A2DP, AVR Chipset: JL Bluetooth Operating Distance: 10 m Bluetooth Version: 4.2 Battery Capacity: 3 600 mAh Sensitivity: 85 dB Charge Time: 4 – 6 hrs Battery Type: Li-Ion Playback Time: 4 – 6 hrs Total Power Output: 2 x 12 W = 24 W RMS Max. Size for USB Drive: 64 GB Charge Input / Power Supply: 5 V DC, 1 A Driver: 2 x 3? Impedance : 4 O Signal to Noise Ratio: 90 dB Shoulder Strap: Yes USB Charging Cable: Yes FM Radio: Yes FM Radio Range: 87.5 – 108.0 MHz Frequency Response: 80 Hz – 20 kHz SD Card: Yes Aux: Yes What's in the box 1 x Volkano Barrel Speaker