Niva With its remarkably compact construction and 10m range, Niva lets you free the sound. This true wireless model features Bluetooth 4.2 technology and 3.5 hours of battery life, all without overlooking Sudio’s distinct minimalist style. And while we’re on the topic of style, Niva’s charging case doubles as a contemporary design piece that can go anywhere you do for an additional 4 charges - bringing total play time to a whopping 17.5 hours. So whether you’re out chasing adventure, or just moonwalking across the kitchen floor, do it without the wires.