Marshall Uxbridge Voice Alexa White Bluetooth/ Wi-Fi Speaker, voice command with Amazon Alexa, 30 W class D amplifier for woofer and tweeter, wireless connection via Bluetooth 4.2, Airplay 2, Spotifiy Connect and Wi-Fi, frequency 54-20000 Hz, controls: volume, bass & treble, play/pause/skip, mute and bluetooth pairing button, dimensions: 128 x 168 x 123 mm, weight: 1,39 kg, colour white