TECHNICAL SPECIFICATIONS Feature Spec Active Battery Rechargeable Li-ion battery with up to 16 hours of playback. Built In Voice Assistant No Cabinet Principle Closed Box Connections 1 x Ethernet 10/100 Mbit/s Colour Brass Tone Size Dimensions W: 16.2 x H: 32.7 cm Effective frequency range 35 ? 24.300 Hz Integrated Music Services Spotify Deezer TuneIn Internet Radio QQ Music (China Specific) Materials Aluminium Multiroom Create a wireless multiroom setup around Beosound 1 by combining it with a range of B&O Play Multiroom products. NFC Enabled Tap, Turn and swipe. Use the touch sensitive wheel to easily start, skip tracks or stations, adjust volume and more Power Amplifiers 1 x 40 Watt class D for full-range 1 x 20 watt class D for woofer Built in Proximity sensor Control panel on the top of the speaker. Detects the user's position allowing uniform and intuitive operation with the touch wheel from any direction Remote Control Options Compatible with the Bang and Olufsen App Speaker Drivers 1 x 1 1/2 Full Range 1 x 4" Woofer Streaming Formats Apple AirPlay Google Cast Bluetooth Audio Sreaming DLNA - DMR Spotify Connect QPlay 2.0 (China Specific) Supported Audio Formats MP3, WMA, AAC, ALAC, FLAC, WAV, AIFF. Standard simple rates up to 192 kHz, stereo and up to 24 bit. WMA Lossless is not supported Warranty 3-year Warranty Weight 3.5 kg Wireless Connectivity Wi-Fi/WLAN 802.11 b/g/n (2.4 GHz & 5 GHz) Bluetooth 4.1 *Unfortunately due to brand restrictions we are unable to retail this product outside the EU. For more information please contact our customer services team via sales@stuartslondon.com... More