SENA B20 Helmet Mesh Intercom — Bluetooth 5.2, IP67, 1.2 km Range, 24-Rider Group Mesh

The Sena B20 is a mesh helmet intercom built for group rides. Mesh Intercom™ links riders at up to 1.2 km in open terrain, and the range can stretch to 4.8 km when at least six riders are spread across the group. Group Mesh holds up to 24 riders, and Open Mesh lets any number of riders join on one of six channels.

It pairs with your phone over Bluetooth 5.2 for calls and music. The battery runs up to 20 hours on phone and music, or up to 15 hours on mesh intercom, and charges in 2.5 hours over USB-C. It's IP67 rated. The box includes both a boom microphone and a wired microphone, plus a clamp mount and an adhesive mount.

Key details

• Brand / Model: Sena B20 — model code B20-01
• Intercom: Mesh Intercom™, up to 1.2 km in open terrain (up to 4.8 km across a minimum of 6 riders)
• Riders: Group Mesh up to 24 riders; Open Mesh virtually unlimited riders, 6 channels
• Connectivity: Bluetooth 5.2 (HSP, HFP, A2DP, AVRCP)
• Audio: 40 mm speaker drivers, Advanced Noise Control™, built-in SBC codec
• Battery: Lithium polymer — up to 15 hours mesh intercom, up to 20 hours Bluetooth (phone and music); charging time 2.5 hours
• Weatherproofing: IP67
• Main module: 87 × 48 × 23.9 mm, 40 g
• Boom microphone: 120 mm; wire between speakers 225 mm
• Operating temperature: -10 °C to 55 °C
• Certifications: WPC, BIS, CE, FCC, IC
• Warranty: 2 years (Sena India)

In the box

• Sena B20 main unit
• White panel set
• Mounting clamp
• Adhesive mounting base
• Speakers
• Speaker pads (2)
• Speaker Velcro fasteners (2)
• Wired boom microphone
• Microphone sponge covers (2)
• Boom microphone Velcro fastener
• Boom microphone mounting base
• Mounting base Velcro fastener
• Wired microphone (soft wire)
• Soft wire microphone Velcro fastener
• USB-C charging and data cable