Elegant compact bluetooth speaker with 15W power and AUX-IN 3.5mm jack inputs, playback from USB flash drives or microSD cards.  InputsWith the SWISSTEN speaker you will be pleased to hear that you can play music not only via Bluetooth, but also from memory cards, USB flash drives or via the AUX-IN 3.5mm jack input. Practical strapA practical strap is attached to the control panel of the speaker for hanging the speaker both outdoors and in the home. Specifications:Bluetooth version: V5.2Protection: IP4USB-C input: 5V/1ABattery: 1800mAhCharging Time: 3hOutput Power: 15WFrequency range: 100Hz-18KHzSignal-to-noise ratio: >80dBMaterial: ABS+textileSize: 11x11x13.3cmWeight: 530gPlayback time: 3hMicroSD: max 32GB