SPECIFICATION Hardware Dullards » Class | Bus tooth v2.0 with EDR + Backward Compatible with Bluetooth v1.1, v1.2 Onus! Interface » Mini-B USB Connector for charging + Earphone Jack (2.5mm) = Built-in Speakerphone Denier Introduce = USB 1.1, 20 Connector / Textual Dipole Antenna Display pixel (STN LOD with back i} LED indicator © Headset Status (Active, Standby, Sleep) Mallory * 3.