Zoook Rocker Armor XL (30W) Bluetooth Speaker with Twin Bass Radiators and 4400 mah Battery (Black) Battery : Built-in 4400 maH Rechargeable Lithium Battery. Minimum 1 Ampere Adapter should be used for better Sound Surprising 30W Output : 3 x 10W Dia. 50mm (for 2 subwoofers), Dia. 45mm (for 1 high frequency speaker) Certifications : IPX 5 for waterproof, BQB for Bluetooth Module, CE, Rohs and Reach MULTIPOINT / MULTIPLE DEVICE SUPPORT Works best with high bit rate/quality files (320kbps and above) 2.1 CH with 30 Watt output 2 x 50mm diameter subwoofers and 1 x 45mm high frequency speaker Bluetooth Version- Bluetooth CSR Ver4.0+EDR chip Bluetooth Range- 33 feet wireless transmission range Bluetooth Profile- A2DP, HFP, HSP, EDR features for high-quality sound Silicon hanger for easy carrying. Charging time: 5 to 7 hours upto 8 hours of continuous music with 4400 mAh rechargeable lithium battery Signal Noise Ratio (snr):  80dB Playback time: Upto 8 hours Size: 203*69*79mm Weight: about 650g Certifications: IPX 5 for waterproof, BQB , CE, Rohs. Zoook Rocker Armor Bluetooth Speaker User Manual AUX Cable USB Charging Cable 1 x Strap