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THE SF4 IS NOW AVAILABLE WITH HIGH DEFINITION SPEAKERS When you purchase your SF4, you will now receive two sets of speakers! Each SF4 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 SF4 is available in a standard package with 1 headset and a dual package with 2 headsets. SMALL GROUP COMMUNICATION For riders who ride in small groups, the SF4 is equipped with 4-way intercom over 1.2 kilometers (0.8 miles). It allows the riders to enjoy smartphone connectivity. Riders can listen to music and use the intercom simultaneously using the Audio Overlay™ feature. Please note that Audio Overlay works best with Android devices, while iOS offers limited functionality. GENERAL Talk time: 13 hours Weight: 35 g (1.23 oz) BLUETOOTH 4.1 Headset Profile (HSP) Hands-Free Profile (HFP) Advanced Audio Distribution Profile (A2DP) Audio Video Remote Control Profile (AVRCP) INTERCOM Working distance: up to 1.2 km (0.8 miles) in open terrain AUDIO Advanced Noise Control™ Built-in SBC Codec Wide volume control Sample rate: max. 48 kHz (DAC) FM RADIO Built-in FM radio with RDS AF Radio region: worldwide Radio frequency specifications: 76 ~ 108MHz 10 preset station memory BATTERY Charging time: 1.5 hours Quick Charge: 30 minutes of charging equals 4 hours use Type: Lithium polymer CERTIFICATES CE, FCC, IC |