特性：

• 1: Rugged and durable design to withstand tough jobsite conditions
• 2: AUX (3.5mm) to support external audio device
• 3: Bluetooth 4.0 compatible V2.1+EDR stereo audio profile
• 4: Indoor 30m Bluetooth transmission range guaranteed
• 5: Support audio A2DP/AVRCP profile
• 6: Playback interface : wireless Bluetooth 2.4GHz / 3.5Φ AUX IN
• 7: 2 Power Source-AC-DC adapter and DC (tooling battery)
• 8: Support USB charge 5V/0.5A