Sena SF2 Motorcycle Bluetooth Intercom System Built for communicating with another rider, the Sena SF2 Bluetooth intercom system provides 2-way intercom communication up to 800 metres in open terrain. The SF2 also lets riders enjoy smartphone connectivity allowing for music streaming, taking and making phone calls, as well as hearing turn-by-turn GPS directions. Plus with the Audio Multitasking™ feature riders can simultaneously listen to music and use the intercom so you are never disconnected. With the Quick Charging capabilities, you will be ready to start your ride in no time. Motorcycle Helmet Bluetooth Intercom Features: GENERAL Main module dimensions: 73.3 x 38.7 x 16.6 mm. HD Speaker driver unit dimensions: 40 x 10.3 mm. Standard speaker driver unit dimensions: 32 x 7.0 mm. Wired boom microphone length: 183 mm. Wire between speakers length: 590 mm. Main module weight: 35 grams. Operating temperature: -10 - 55°C. BLUETOOTH Bluetooth 5.1. Headset profile (HSP). Hands-Free profile (HFP). Advanced audio distribution profile (A2DP). Audio video remote control profile (AVRCP). INTERCOM Working distance: up to 800 m in open terrain. Supports up to 2 riders. AUDIO Noise cancellation: Advanced noise control™. Codec: Built-in SBC codec. HD Voice enabled for high-quality phone call audio. BATTERY Talk time: up to 14 hours. Charging time: 1.5 hours. Quick charging: 30 minutes of charging equals 4 hours intercom. Charging temperature: 0–45 °C. Type: Lithium polymer battery. CERTIFICATES CE. FCC. IC. HIGH DEFINITION SPEAKERS Each SF2 comes with one standard and one HD speaker set. The HD speakers will take your ride to the next level with louder, clearer quality audio. The standard speakers are a bit smaller in size and may be a more comfortable choice for some riders. The SF2 is available in a standard package with 1 headset and a dual package with 2 headsets READY FOR ADVENTURE WITH SENA APP Customize a variety of settings on your Sena device with the Sena Motorcycles App. Connect your Sena headset to your phone in the Bluetooth settings menu and get the most out of your adventures.