FeaturesAbundant audio inputs: with 3.5mm AUX/USB/BT 5.0 inputs, almost compatible with all home audio device such as phone, tablet, computer, TV, set-box, CD player etc. USB port supports computers (no driver required) and smart phones (with OTG function).Bluetooth 5.0 Classic MA10270 chip: supporting Bluetooth 5.0 to realize stable high-speed transmission speed and greater wireless range. Adopting MA10270 chip whose max output power reaches 68W * 2, easily to drive most home desktop / bookshelf / indoor passive speakers (4-16).HiFi sound No noise: adopting simple circuit layout and high-quality componets such as pure copper gold-plated terminals, the sound is very clear and clean, natural and uncolored, no pop or audible noise even at high output. DC 9-20V wide voltage input makes it possible to be used in car or motorcycle.Superior design Colorful indicator: super compact but attractive appearance, unique treatment process of case looks high-end and with texture. With power, input and volume indicators, the working status is clear and distinct, very convenient to use and providing dynamic visual enjoyment.ParametersAudio inputs: Bluetooth / USB(Type-C) / 3.5mm AUXAudio output: Banana Speaker JacksBluetooth Version: 5.0Max output Power: 68W*2 (20V/4 load)Speaker Impedance: 4-16Working voltage: DC 9V-20VPower specification: 5.5mm / 2.1-2.5mmFrequency Response: 20Hz-20KHz(1dB)SNR: 98dBDimensions(H*L*W): 60*40*55mm / 2.36*1.57*2.17inNet Weight: 135g / 0.30lbPackage weight: 175g / 0.39lbPackage weight (with accessories): 450g / 0.99lb