Zoook Jazz Blaster 30W Bluetooth Speaker with Auxin & Handsfree Calling/ IPX5 Splashproof/ 5200Mah Battery/Party Speaker (Black) There are many loud Bluetooth speakers out there & then there is Zoook Jazz Blaster - not just loud, but truly powerful. Its 30W stereo output is coupled by an in-built passive subwoofer to provide the best bass streaming and amplification. Bigger and stronger than other options in its class, Jazz Blaster has all the potential to be party lovers' best buddy. Being shockproof and waterproof (IPX5 certified), it can rock a party out outdoors and indoors - beaches, poolside bashes or impromptu house parties, this rough-and-tough, rugged speaker is all you need to set the ball rolling. SPECIFICATIONS: Bluetooth Version: v4.2 Bluetooth Profiles: A2DP, HFP, HSP, EDR Speaker: 15W * 2 = 30 W  Body: Refined ABS  Bass Diaphragm: Yes Waterproof rating: IPX5 Connectivity: Bluetooth, Aux-in & Handsfree Charging: Micro-USB Handsfree: Yes  Noise Cancellation: Yes  IPX5: Yes  Battery: 3.7V 5200mAh  Music Playback Time: 5~8hours*  Power Input: DC 5V/1A  Charging Time: 4~6 hours*  Frequency Response: 90Hz~18kHz  Sensitivity: 80dB±2dB  Operating Distance: 10m Dimensions: 278x119x125mm Product Weight: 1.2Kg * Playing & Charging time may very depending on usage.