Communication:Bluetooth Battery: Yes Speaker Type: Portable Power Source: Battery Number of Loudspeaker Enclosure: 2 Audio Crossover: Full-Range Bluetooth Version: 5.0 Active Noise-Cancellation: Passive Support Memory Card: Yes Playback Function: mp3 Subwoofer cabinet material: plastic Material: Glass Built-in Microphone: Yes Model Number: ZQS4239 Features: High Power 30W Bluetooth Speaker Features 2: 30W Bluetooth Speaker Bass Portable Column Features 3: Portable Column Wireless Stereo Subwoofer Music Player Center Features 4: Portable Column For PC Computer Speakers Subwoofer Boom Box Features 5: Outdoor cylindrical Bluetooth speaker Features 6: Bluetooth speaker Features 7: Outdoor Subwoofer Bluetooth Wireless Portable HiFi Sound Box