Foldable Wireless Headsets - 4.1 Sport Neckband Stereo Headphones with Mic - Sweatproof Earbuds for

"Our Kocaso Foldable Sport Wireless Headset Adopts Innovative Neckband And Retractable Earbuds Wire Length Design. The Comfortable Neck-behind Wearing Style Provides A Comfortable Fit And Easy Button Control. And, Can Easily Retract The Earplugs When You Don’t Need Them, Thoroughly Eliminating The Burden On Ears. Additionally, The Wireless 4.1 Ensures Crisp, Skip-free Stereo Sound. Easy Button Control Allows For Fluent Calls, Music And Volume Control. Kocaso S1 Headset Is A Good Choice For Music Or Sport Enthusiasts. 

• Foldable Neckband & Retract Earbuds: The Sweat-proof Earphones With Foldable And Durable Neckband, Fashionable And Lightweight. It Provides A Comfortable And Firm Fit On Your Neck When You Are Exercising. You Can Enjoy Your Leisure Time While Almost Forgetting The Existence Of Earphones. The Retractable Cable Is Anti-winding And Anti-messy; It Is Optimal For Running, Jogging, Walking, Cycling, Etc. No Worry About Sweat-damage. 
• Wireless 4.1 Technology: Advanced Csr Chip Provides Stable Paring With Your Wireless Enabled Device And Supports The Connections With Two Devices At The Same Time, Also Supports Automatically Connecting After The First Successful Pairing. 

• Superior Sound Quality: Adopt High-sensitive Microphone With Noise Cancellation Technology To Reduce Ambient Noise, Grasp The Details Of Voice And Offer Crystal Clear Sound Even In A Noisy Environment. Feature With Excellent Acoustic Components That Produce Incredible Sound Quality With Deep Bass, Balanced Midrange And Crystal Clear Treble.  
• Never Miss Any Call: When There Is An Incoming Call, The Wireless Earphone Will Alert You By Vibration, Not Miss Any Call Even If You Are In Sports Or Even In A Noisy Environment. Its Built-in High-sensitive Microphone Provides Clear Hands-free Call.  
• 18hrs Work Time: Built-in 300mah Rechargeable Lithium Battery Lasts Up To 18 Hours Of Talking Time / 10 Hours Of Music Playing Time And More Than 300 Hours Of Standby Time Per Charge Cycle. It Supports Ios Device Power Display And Low Battery Alarm, Allowing You To Enjoy Your Music Without Any Worries. 
• Comfortable & Secure Fit

The Ergonomic Earbuds Fit Your Ears Safely, Ensuring A Comfortable Wearing Throughout The Day, And Will Not Fall Off Even During Running, Fitness Or General Exercise. 

• Super Lightweight Neck-behind Design

The Unique Neckband Design Is Stylish And Elegant, And Is Ideal For Sports. It Is Super Lightweight With No Pressure On The Neck, And Can Ensure Comfort Even For A Whole-day Wearing. 

• Get Fitted

Auto Retractable Earbuds Allows You To Pull The Retractable Wire To The Length You Want And Press The Retract Button Can Store The Earbuds Wire Automatically. No More Worry About Tangling Or Messy. 

• Broadcast Phone Number

When There Is An Incoming Call, The Headset Will Prompt Phone Number \'134\' With Vibration. Click Mfb To Answer Or Just Operate On Your Mobile Phone.

• Active Siri

Simply Double Press The +button On The Headband To Active Siri, Answer And End Calls, Adjust Volume, Play, Pause And Skip Songs. So Convenient!

Brand:  Kocaso 
 Product Type:  Neckband Sport Wireless Headset 
 Wireless Version:  Csr 4.1, Class 2 
 Wireless Protocol:  Supports Hsp, Hfp, A2dp, Avrcp Protocol.
 Frequency Range:  2.4026~2.480 Ghz
 Operation Range:  Up To 10 Meters (Free Space)
 Microphone:  Built-in High-sensitivity Microphone
 Headset Battery:  3.7v / 300mah Rechargeable Lithium Battery 
 Music Playing Time:  About 10 Hours (The Music Volume Will Affect The Time)
 Talk Time:  Up To 18 Hours
 Standby Time:  300 Hours
 Charge Time:  About 3.5 Hours
 Available Colors:  Black, Gunmetal, Hotpink, Blue, Purple, Rose Gold, White
Usb Charging Cable: 24cm/9.44inches
Item Size: 15.5x16x2.6cm/6.10x6.30x1.02inches
 Item Weight:  72g/0.16lbs

package Size:  19*15.4*4cm/7.48*6.06*1.57in 

package Weight: 144g/0.32lbs"