Sony SRSXB13. Speaker type: Full range, Driver diameter: 4.6 cm. RMS rated power: 5 W, Frequency range: 20 – 20000 Hz, Impedance: 4 ?. Connectivity technology: Wireless, Frequency range: 0 – 2.4 GHz, Bluetooth profiles: A2DP, AVRCP, HFP, HSP. Product type: Stereo portable speaker, Product colour: Taupe, Product design: Cylinder. Recommended usage: Universal, Audio formats supported: AAC, SBC, Microphone direction type: Omnidirectional