P475.0+EDRWireless Bluetooth • Driver unit: 40mm diameter• Support Wireless 4.2 version downwards• Compatible with 4.2 VERSION• Scope of work: 10meters• USB charging cable: AC input 110-240V DCi nputv5V• Talk time: 6 hours• Stanby time: up to 15 hours• Operating frequency: 2.4GHz-2.4835GHz• The output frequency: class2• Noise reduction the chnology: DPS digital signal processor• Support A2DP funciton• AVRCP remote control capabilities• Supports automatic switchover to incoming call function• With the end number redial function• Large and small volume adstment• Forward backward selections feature pause function • Compatible with ROHS standards