You can also check Bone Conduction Headphone Earphone Bluetooth Wireless Headset Handsfree Calling and Bone Conduction Bluetooth Wireless Headset Sport Handsfree Earphone Universal for a better comparison at Headsetearphones.us.

--> Headset Handsfree Features: 1. lightweight and Intelligent eagerly 3.
Support iPhone 4/iPhone4s/Samsung/HTC/Xiaomi with Bluetooth function 4.
Chinese English voice prompt, intimate use It of metal 6.
Comfortable to it have sound transmission without noise Professional electroplating enclosure cable tie, sports HD sound Specifications: 2. 3.
Dimensions: x 0.39)" / x 5.5 x (L W H) 4. 5. 13g 4.1,10 Frequency 2.48GHz up to 8-10 Package Includes: Bluetooth Earphone x Pair Earbud Caps Charging Cable Shipping + 1. worldwide from New Jersey by shipping USPS, UPS, and only to PAYPAL.
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