The SF Series is designed to give drivers exactly the features they need for their comfortable ride. The SF series allows a Bluetooth connection to a smartphone, MP3 player or navigation device, while both the SF2 and SF4 also have an intercom function. All SF models offer the latest features such as audio multitasking™, fast charging and microphone muting. The SF series is particularly impressive with its slim and functional design that fits almost every helmet. Batteries must not be disposed of by household waste. They are legally obliged to return old batteries so that professional disposal can be guaranteed. You can hand over old batteries at a municipal collection point or on site. We are also obliged to withdraw old batteries as distributors of batteries, whereby our withdrawal oblig.
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