Bluetooth headset from Sina Company, 3S PLUS version

Features: Dimensions: Speaker operating unit: 23 mm - thickness 4.3 mm Microphone arm: length 120 mm Microphone cable: length 180 mm Weight: 48 grams Operating temperature: -10°C - 55°C Bluetooth: Bluetooth 4.1 Headphone profile (HSP) Hands-free profile (HFP) Advanced audio output profile (A2DP) Remote control profile for audio or video devices (AVRCP) Intercom: Range: up to 400 meters (0.25 miles) in open terrain Supports up to two riders Sound: Noise cancellation: advanced noise control Battery: Talk time: up to 8 hours Charging time: 3 hours Type: Lithium polymer battery Contents: Bluetooth communication system 1X Sena 3S Plus Microphone boom 1x Wired microphone Cable USB power and data cable 1x Microphone foam