ibesi.b1 mini bluetooth earphone wireless headphones mono small handsbass earbuds headset with mic for xiaomi huawei smart phone.features:.100% brand new..can connect two phones simultaneously.voice commands..extended battery life..high-fidelity sound and voice quality effect.supports bluetooth: headset profile, hands-profile (dsp technology).support bluetooth stereo music playback.bluetooth 4.0 version, can be simple pairing safely.can be casual talk while driving / working or walking