Wholesale Free shipping!! PMX680 PMX-680 Stereo In-ear Sport Neckband Earphone Earbud Headphone 4 MP3/4 PC iPod iPad iPhone 4 4S

Feature:

High performance rugged stereo neckband headphones for sports
Sweat- and water-resistant: ideal for sports
Ergonomic neckband: secure and comfort fit during workouts
High-output drivers: energizing sound
Acoustically more open - blocks less outside noise and lets you be more aware of your immediate environment (more recommended for outdoor use)
Short cable for ease of use while running or working out with your player around your neck or on your arm; option of using extension cable with volume control
Practical accessories like cable clip and storage pouch included in the delivery

 
Specification:

Frequency response: 18 - 20000 Hz
Sound pressure level (SPL): 120dB
Impedance: 16ω
Total harmonic distortion (THD): <0.5% (1kHz, 100dB SPL)
Jack Plug: 3.5mm straight
Cable length: 0.6m symmetric + 0.6m extension cable with integrated volume control
Weight: 18g
Ear coupling: intraaural (ear canal fit)

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