... price limit6.Outdoor portable speaker bluetooth function 7. wireless speakerFunction:1.Built-in Bluetooth RF wireless module, meets the latest Bluetooth 2.1+ED ... 8 hours, audio transmission distance is 10M. 5.With Bluetooth music controlling function, can control play/pause, previous/ ... -in lithium battery; USB cable power supply. 7. With Bluetooth hands free function, built-in high fidelity chip, can ...