Playtime: 3 - 6 Hours Charge Time: 5 Hours Aux: 3.5 mm Stereo Jack Bluetooth: Version 5.0 Enjoy listening to music with your VK-3411 VolkanoX Viper Series Bluetooth Speaker. This speaker offers passive woofers for that extra-rich sound. Take it anywhere with the carry strap and get up to six hours of playtime from the rechargeable battery. Expanded assortment available online. This item not carried in store.