Portable Bluetooth speaker with built-in microphone Stream your music wirelessly, signal reach up to 10 m Can also be used as Bluetooth handsfree kit 3.5 mm AUX-input, so non-Bluetooth devices can also be connected via audio cable Also plays music directly from micro SD card or USB stick (max 32GB) Up to 2 hours of music play time on a single charge Interface: Bluetooth v.5.0, Handsfree profile (Built-in microphone) Bluetooth frequency range: 2.402 GHz – 2.480 GHz RMS power output: 5 W Frequency response: 100Hz - 20KHz S/N ratio: >85 dB MicroSD card support: up to 32 GB DC input: MicroUSB 5 VDC up to 1.5 A Battery: rechargeable 1200 mAh Li battery Dimensions: 116 x 93 x 93 mm Net weight: 305 g