Sena 10S FC-Moto Bluetooth Communication System Double PackThe 10S is the upgraded version of Sena’s flagship Bluetooth headset for motorcycle helmets, the SMH10. Talk to 3 riding companions via HD audio, up to 1.6 km (1.0 mile) away, take calls, listen to music and more. Riders can connect with all Sena and non-Sena Bluetooth motorcycle headsets using Universal Intercom.Features:Bluetooth 4.1Headset Profile (HSP)Hands-Free Profile (HFP)Advanced Audio Distribution Profile (A2DP)Audio Video Remote Control Profile (AVRCP)Noise Cancellation: Advanced Noise ControlCodec: Built-in SBC CodecHD Voice enabled for high-quality phone call audioSpecifications:Working distance: up to 1.6 km (1.0 mi) in open terrainSupports up to 4 ridersTalk time: up to 12 hoursCharging time: 3 hoursLithium Polymer BatteryOperating Temperature: -10˚C – 55˚C (14°F – 131°F)Dimensions:Main Module: 85 mm x 57 mm x 27 mm (3.4 in x 2.2 in x 1.1 in)Speaker Driver Unit: 40 mm – thickness 6.5 mmBoom Microphone: length 183 mmWeight Main Module: – 58 g (2.05 oz)Contents:2x Sena 10S Main Unit2x Clamp Unit2x Glued Surface Mounting Plate2 pair of Speakers2 pair of Speaker Pads, thick2 pair of Speaker Pads, thin4 pair of Hook and Loop Fasteners for Speakers2x Wired Microphone2x Hook and Loop Fastener for Wired Microphone2x Wired Boom Microphone2x Hook and Loop Fastener for Boom Microphone2 pair of Microphone Sponges2x Boom Microphone Holder2x Hook and Loop Fastener for Boom Microphone Holder2x USB Power & Data Cable (USB-C)2x Allen Wrench