REMAX RM-550 3.5mm Gold Pin In-Ear Stereo Music Earphone with Wire Control + MIC, Support Hands-free (Black)

1. Support play/pause, volume up/down. 2. The sound cavity is concentrated to guide the sound, the sound effect is more powerful and clear. 3. Enjoy music anytime, anywhere. 4. It is ergonomically designed and comfortable to wear. 5. Small size, easy to carry around. 6. UV technology, stylish appearance. specification 1. Frequency response: 20-20KHz 2. Speaker output sensitivity: 95+/-4dB 3. Microphone sensitivity: -43+/-4dB 4. Impedance: 16 ohm +/-15% 5. Rated power: 2mW 6. Drive unit: 9MM 7. Pin: 3.5mm gold plated 8. Cable length: 1200mm