Wireless Hifi Stereo Bluetooth Headsets Headphones for CellphoneNoise Reduction Mini Handsfree Wireless Bluetooth 4.0 Earbud Headphone Earphone GreenKS-V01 is a Bluetooth earphone ,it is the newest product of syllable headphone companyWater-Drop appearance design, Mini and portableYou can use its Bluetooth to listen to music and make phone callsCompatible with all bluetooth 4.0 devicesCan connect with two phone at the same time, very convenient for youDetails: Wireless Hifi Stereo Bluetooth Headsets Headphones for Cellphone1. Bluetooth protocol: HSP, HFP, A2DP2. Bluetooth version: 4.03. Talking time: 4h;4. Playing time: 3h;5. Standby time : 100h;6. Charging time: 2h;7. Transmission distance: 10m;8. Weight: 6g;9. Impedance: 16ohm;10. Frequency response: 20-20kHz;11. Charging input: 5V/300-500mA12. Wireless: yes13. Hifi stereo Bluetooth headsets type: Bluetooth headphones for cellphoneWireless Hifi Stereo Bluetooth Headsets Headphones PictureWireless Hifi Stereo Bluetooth Headsets Headphones for CellphoneThe Newest bluetooth headset with lightweight and compact portable design.We are committed to creating the most Mini bluetooth headsets. Simple and StylishBuilt-in HD and sensitivity microphone. Ideal for in-car calling or working use. Support A2DP , makes you can enjoy clear and natural sound when calling.Built-in 50 Mah polymer battery. Up to 4 hours of continuous talk time, 3.5 hours of music time.Can be connected with two smartphone at the same time.The wireless range up to 10 meters on open air. The headser will be connect automatically with a phone paired previously.Due to the difference of people's ear, this earphone maybe not fits everyone. If the one you get is not perfect for you, please let us know. We will find a best way to help you.Wireless Hifi Stereo Bluetooth Headsets Headphones for CellphoneRecommendations: Mini Handsfree Bluetooth Earphone Noise Cancellation Earbuds                                  In-ear Wireless Bluetooth Headset Hifi Anti-radiation Headphones                                  In-ear Style Mini Bluetooth Earphone with 3 sets of Ear Tips