Version: V4.1   Features:  a. Supporting listening to music and answering the phone. b. Intelligent Chinese and English prompts. c. There is a battery display in the Apple mobile phone, you can check the battery status of headset at any time. d. It can connect 2 mobile phones at the same time. e. Voice controlling, say yes to answer / say no to refuse. f. When the Bluetooth headset is connected to the phone and turned off, the Bluetooth headset will automatically connect to the phone when it is turned on, which is convenient and faster. g. Intelligent compatibility: Supporting all mobile phones with Bluetooth, tablet, notebook, sing, QQ music, movies, etc. h. Call duration: 10 hours i. Standby time: 300 hours j. Listening time: 10 hours k. Battery capacity: 150mah, Transmission distance: 10 meters, Charging time: 2 hours, Noise reduction: CVC intelligent noise cancellation technology, Built-in high-definition microphone, Product quality: HD high-definition sound quality l. Package: Headset+Charging cable+Instruction book+ear cap