Sena SF4 single set

Sena SF4 Bluetooth Communication System Single Set GENERAL Talk time: 13 hours Operating temperature: -10?C - 55?C Dimensions: Speaker: Driver unit 38 mm - thickness 10 mm cable extended gooseneck Microphone: length 183 mm Length of cable between speakers: 590 mm Weight: Module: 35 g BLUETOOTH Bluetooth 4.1 Headset Profile (HSP) Hands-free Profile (HFP) Advanced Audio Distribution Profile (A2DP) Audio Video Remote Control Profile (AVRCP) INTERCOM Range: up to 1.2 km in open terrain AUDIO Advanced Noise Control? Integrated SBC codec, multi-stage volume control, sampling rate: max. 48 kHz (DAC), FM RADIO: Integrated FM radio with RDS AF (Radio Data System Alternate Frequencies), radio region: Worldwide, frequency range: 64 ~ 108 MHz, memory for 10 stations with automatic search function, BATTERY charging time: 1.5 hours, quick charge function: with just 30 minutes of charging time, you can use the intercom function for up to four hours. Quick start guide - SF4. Included in delivery: SF4 main unit, universal helmet clamp, wired boom microphone, wired microphone, microphone attachments, adhesive mount, 1 pair of normal speakers, 1 pair of HD speakers, hook and loop fasteners for attaching the speakers, hook and loop fasteners for attaching the boom microphone, hook and loop fasteners for attaching the wired microphone, holder for boom microphone, hook and loop fasteners for holder, USB charging and data cable (micro USB).