The Wave Tangle-Free Stereo Earbuds are small and sleek earbuds with a built-in microphone and ideal for anyone on the go. The comfortable in-ear design provides stereo sound quality. The built-in microphone includes a one-touch answer button for easy phone use. The tangle-free flat cable provide durability for long-lasting comfort! 
Coby Wave Tangle-Free Flat Cable Stereo Earbuds with Mic:
Premium sound quality, compact size and sleek design
Soft silicone ear buds provide a super-comfortable, noise-reducing fit
High-intensity listening experience with crisp, clear sound and deep bass
Premium jack for no-loss sound connection to your audio device
Frequency range: 20Hz-20kHz
Impedance: 32 ohm
Sensitivity: 91 + 3 dB
3.5mm connection