Sena SMH-A0302 Helmet Clamp Kit Boom & Wired Microphone for SMH10

Sena SMH-A0302 Helmet Clamp Kit Boom & Wired Microphone for SMH10 Also known as part# 39900 Attachable Boom Microphone & Wired Microphone kit. SMH-A0302.*(Please Note - It is necessary to drill a slot in the ear muffs to install this system. It is likely the speaker wires will be severed when reinstalling the pads to the muff housing if this modification is not performed. Helmet Clamp Kit - Attachable Boom Microphone & Wired Microphone Designed as an alternate clamp kit for the Sena SMH10 with standard speakers as per the original clamp kit and optional microphone attachments. Choose from a wired microphone or attachable boom ideal for flip face helmets or full face helmets with limited room. Dimension: 235 mm x 105 mm x 30 mm (9.25 in x 4.13 in x 1.18 in) Weight: 148 g (0.32 lb) Warranty 2 Year Manufacturer