новый v8s bluetooth беспроводная гарнитура стерео наушники наушники спорт handfree

1. bluetooth version: v4.1+edr is backward compatible with v3.0, v2.1, v1.1 2, transmission power: class2 3. transmission frequency: 2.4ghz 4, transmission distance: 10 meters barrier-free 5, talk time: 8~10 hours 6, standby time: 120 hours 7, support file format: a2dp music player, headset and hands-free mode 8, voice answering the phone, yes answer, no hang up.