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Description:

• ERGONOMIC DESIGN FOR EARPLUGS: Ergonomic in ear design for earplugs, effectively to block out ambient nosie such as the snoring, TV sound, office nosie… and make you have a excellent listening performance even in noisy environment.
• QUALITY SOUND: hands-free phone calls. Designed with Bluetooth 4.1 technology and superior acoustic components, ensure fast connection and stable signal transimission.You'll never miss any phone call by using this Bluetooth sleep earbuds, design of stereo clear sound will give you incredible music sound quality and dynamic listening experience. 
• COLLAR CLIP BLUETOOTH HEADPHONE: Earbuds for Sleeping on Side, Flexible and Comfortable to Fit Ergonomic neckband design and built-in memory metal wire inside neckband, the Bluetooth earbuds for sleeping is soft and flexible to fit stable around your neck and never fall off. It makes you more comfortable even for long time wearing. 

Brand Name: STEVVEX Headphones
Model Number: ST10SMFD3EGTE

Style: In-ear
Vocalism Principle: Dynamic
Control Button: Yes
Active Noise-Cancellation: Yes
Communication: wireless
Volume Control: Yes
Sensitivity: 120±3dBdB
Is wireless: Yes
Max Output: 5mW
Line Length: 0.3mm
Support APP: No
Number Of Drivers: 1
Plug Type: None
Impedance Range: up to 32 Ω
Connectors: None
Earcups Type: Sealed
Headphone Pads Material: Silicone
Bluetooth Version: 4.1
Support Memory Card: No
Driver Diameter: 10mm
Resistance: 32ΩΩ
Waterproof: No
Frequency Response Range: 2.4 - 2.48Hz
With Microphone: Yes
Charging Method: CABLE