Divacore Ktulu II+. Audio output channels: 2.1 channels, Magnet type: Neodymium. Connectivity technology: Wired & Wireless, Bluetooth profiles: APT-X, Bluetooth range: 15 m. Product type: 2.1 portable speaker system, Product colour: Black, Product design: Rectangle. Recommended usage: Tablet / Smartphone. Power source type: Battery, USB, Battery life (max): 35 h, Battery recharge time: 4 h