Jabra BT5020 Bluetooth headset. By Jabra.

• Bluetooth compliance: Bluetooth version 2.0 specifications
• Supported Bluetooth profiles: Bluetooth headset and hands-free profiles
• 10 meters Operating range, up to 10h talk time, up to 300hr stand-by time
• Approximately 2 hours charging time
• Material: primarily thermoplastic polyurethane and polycarbonate plastics
• Microphone type: 4mm Omni-directional microphone
• Battery type: Rechargeable lithium polymer
• Pairing passkey or PIN: 0000
• Supported special features (* Phone dependent): multipoint connections, autopair functionality, optimized wind noise reduction, enable/disable vibrating alert, optinal charging from PC via USB cable, multi-colored light indicator LED (LED is switched off after one minute of inactivity, visual alert of incoming calls for ultimate discretion, charging, battery status indicator), mute, answer/end call, voice dial*, last number redial*, reject calls*, call hold/wait*