Libratone Zipp review: PlayDirect AirPlay takes on Bluetooth speakers - The Verge
Libratone Zipp review: Portable AirPlay speaker has trade-offs - CNET
Libratone - Zipp - Nordic Black - High Quality Speaker - Airplay, Bluetooth, Wireless, DLNA, WiFi - Avvenice
Amazon.com: Libratone Zipp Mini Wifi Bluetooth Smart Speaker, 360° Loud Stereo Sound with Dual Mic Build-in, Deep Bass, 12 Hour Playtime, Airplay2 and Spotify connect, Work with Alexa(Cloudy Grey) : Electronics