Alien Metal Bluetooth Wireless Speaker TWS Subwoofer Stereo Sound Box TF Card Upgrade Mini Portable Loudspeaker Gift

Battery: Rechargeable lithium battery Battery capacity: 600mAh Play time: 6 hours Play mode: bluetooth, TF Bluetooth version: V.5.0 Bluetooth transmissio distance: 10 meters Frequency response range: 80Hz-16KHz Signal to noise ratio: ≥75dB Speaker specifications: 4Ω/3W Packing list: speaker + USB charging cable+ manual Size: 73.5*63.5MM