Teno is a portable speaker produced by Lumio. The Lumio Bluetooth speaker is a cutting-edge product. Teno delivers powerful and clear sound, with minimal distortion. The sound is finely tuned using advanced DSP technology which allows for a more balanced and comfortable listening experience for all types of music. All this combined with the highest quality neodymium full-range driver and a custom-made passive radiator, Teno allows for amazing highs, crystal-clear mid-ranges, and deep powerful bass. The case is available in two different colors. The product includes a 10W D-class amplifier. Light Source: Bluetooth Version 5.0; Amplifier: 10W class-D amplifier; True Stereo Pairing (TWS): Available between two Teno; Battery capacity: 2800 mAh; Speaker battery life: Up to 8 hours at 50% volume; Power supply: 5V/2A via magnetic point charger (included); Charge time: 3.5 hours. On-device controls: Play/pause touch sensors Brightness control touch sensors Volume touch sliders Bluetooth connect/TWS touch sensors.