• Transmitter Carrier Frequency: 2.4GHz • Connectivity Options: Bluetooth 5.4, optical, AUX 3.5mm • Operating Range: Up to 100ft / 30m • Speakers Wireless Connectivity: 2.4G RF & Bluetooth 5.4 • Supported Bluetooth Profiles: A2DP, AVRCP, HSP, HFP • Speaker Playtime: Up to 6hr • Charging Time: 4hr • Power Output: 15W, THD≤1% • Battery Type: Built-in