Brand: Sonos Made in: China Composition: Plastic Type of power supply: charging basis USB-PD Charging time: 3 hours Bluetooth: Yes Bluetooth version: 5.1 Wi-Fi: Yes Wi-Fi version: 802.11 a/b/g/n/ac Microphone: Yes Voice assistant: Amazon Alexa Frequency (Hz): 0,00 Waterproof: No Warranty: 2 years Included in the box: charging basis USB-PD, user manual Item code: SON336