V4.1 Bluetooth Headphones, Bluenin Stereo Wireless Headset Neckband Retractable Sport Earbuds with Mic Noise-Cancelling, Sweatproof for iPhone IOS Android Devices (Black)

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Warranty: Bluenin provides customer one year worry-off Warranty, lifetime tech supports and free replacement for defective purchasing product within 3 monthes. Please contact Seller firstly when having problem! Features, Finctions and Buttons: 1.Power on /off switch 2.Call answer / end button 3.Music play / pause button 4.Earbud wire management button 5.One touch volume control 6.Re-dialing 7.Vibration function for incoming calls, pairing, and powering on/off. Retractable Earbuds with Wire Management (Earbuds easily retract into headset) 8.Special Ergonomic Design with 4 color options and flexible lightweight neckband style. Specifications: Bluetooth Specification: 4.1+EDR Bluetooth Working range: 10M( obstacle between connection, such as wall, door, may disturb the connection stability) Standby time: 500 Hours Talk Time: About 15 hours Music Play Time: About 12 hours Charging time: About 2 hours Dimension (L×W×H): 7.01x6.11x0.59 inches Weight: 1.91 ounce How to Connect two Bluetooth Devices Simultaneously: Firstly, you need to connect with one device,then disconnect it. Secondly, connect with another device. At last, reconnect with the first one, and you will have them connected simultaneously. Charging: While charging, the LED indicator will show a soild red light an then change to violet when charged 80% and above When charging is completed, the LED indicator will show a solid blue light Package Included: 1 x BNHWS990 Bluetooth Headphones 3 x Earplugs 1 x Micro USB Charge Cable 1 x User Manual