• -Waterproof & Dustproof level: IP47• Bluetooth performance: V2.1 + EDR A2DP AVRCP • Operating range Imaximum1:10 Meters [The transmission distance changed depending on the environment where the product is used) • Microphone: Built-in • Powered by: AA x 4 [not included) • Connector: 3.5mm AUX-in function • Powered by: DC 5V cable • Product size:I99 W x 89 H x 45 D mm