Bullet point ：

Music play /pause , answering call button is convenient to you , you can answer incoming call by light press the button during music playing when you receive a phone call , music will automatically play again after you end the phone call .During music play , double press button for next song , treble press button for previous song
Strong bass speakers provide excellent stereo sound
Light weight , perfect fit with extra ear tip size S/M/L
Perfect for sports aficionados to enjoy their sports activities accompanied with music playing with smart phones.
Sold by manufacturer.

Description:
-Built-in microphone
-High-fidelity stereo sound , powerful bass and crisp treble
-Light weight suitable for in-house and outdoor long period using .
-Integrated control buttons for phones calls and music playback

Specifications:
Speaker diameter : ø10 mm
Speaker sensitive ( SPL ) : 96+/- 3dB
Speaker impedance : 16 Ω
Speaker frequency : 20-20KHz
Mic sensitive : -42 +/-3 dB
Mic impedance : 1.2-2.2KΩ
Weight : 13 g
Ear tip size : S/M/L
Cord length : 1.2 M
Plug type : 3.5mm 4 poles stereo plug

Notice:
To protect auditory , please adjust the volume to suitable level , please do not continuously listening music for more than 2 hours at max volume level
Please don’t use the in ear neckband headphone to listen to music during driving .

What ‘s in the box ？
1 x In ear neckband headphone
1 set size S ear tip
1 set size L ear tip