Skip to content
Free Shipping on orders over $69.99 to the continental 48 (Alaska & Hawaii orders, call 402-214-0706 to order).
All products have accurate in stock quantities listed, if it shows in stock it’s actually in stock!
Free Shipping on orders over $69.99 to the continental 48 (Alaska & Hawaii orders, call 402-214-0706 to order).
All products have accurate in stock quantities listed, if it shows in stock it’s actually in stock!
Sena

SENA Smart HJC 21B Bluetooth Communication System

MPN: 0721-1350-00
Sena

SENA Smart HJC 21B Bluetooth Communication System

MPN: 0721-1350-00
Availability:
Out of stock
The Sena Smart HJC 21B offers Bluetooth 5.1, 4-way intercom, HD sound, and 22 hours of battery life for seamless communication. SPECS Bluetooth Intercom Bluetooth 5.1 Universal Intercom Advance Noise Control™ Max 1.6KM Range HD Speaker Audio Multitasking 22 Hour Battery DESCRIPTION The SMART HJC 21B is the 2nd Generation Standard Bluetooth Communication System model that supports 21B compatible HJC helmets, with structural interfaces that users can easily mount on HJC helmets. Based on the BT 5.1 low power system, the 21B offers Bluetooth 4-way intercom functionality, with over 22 hours of talk time. The enhanced sound provides users with an HD speaker, to enrich mid-to low-pitched sounds.
Sold out
Original price $219.99 - Original price $219.99
Original price
$219.99
$219.99 - $219.99
Current price $219.99

Product Details

The Sena Smart HJC 21B offers Bluetooth 5.1, 4-way intercom, HD sound, and 22 hours of battery life for seamless communication.

SPECS
  • Bluetooth Intercom
  • Bluetooth 5.1
  • Universal Intercom
  • Advance Noise Control™
  • Max 1.6KM Range
  • HD Speaker
  • Audio Multitasking
  • 22 Hour Battery
DESCRIPTION
The SMART HJC 21B is the 2nd Generation Standard Bluetooth Communication System model that supports 21B compatible HJC helmets, with structural interfaces that users can easily mount on HJC helmets. Based on the BT 5.1 low power system, the 21B offers Bluetooth 4-way intercom functionality, with over 22 hours of talk time. The enhanced sound provides users with an HD speaker, to enrich mid-to low-pitched sounds.
Product Description

The Sena Smart HJC 21B offers Bluetooth 5.1, 4-way intercom, HD sound, and 22 hours of battery life for seamless communication.

SPECS
  • Bluetooth Intercom
  • Bluetooth 5.1
  • Universal Intercom
  • Advance Noise Control™
  • Max 1.6KM Range
  • HD Speaker
  • Audio Multitasking
  • 22 Hour Battery
DESCRIPTION
The SMART HJC 21B is the 2nd Generation Standard Bluetooth Communication System model that supports 21B compatible HJC helmets, with structural interfaces that users can easily mount on HJC helmets. Based on the BT 5.1 low power system, the 21B offers Bluetooth 4-way intercom functionality, with over 22 hours of talk time. The enhanced sound provides users with an HD speaker, to enrich mid-to low-pitched sounds.
Part Numbers
Store SKU MFR. Product # Availability
HHS0721-1350-00 0721-1350-00 Out of Stock

The Sena Smart HJC 21B offers Bluetooth 5.1, 4-way intercom, HD sound, and 22 hours of battery life for seamless communication.

SPECS
  • Bluetooth Intercom
  • Bluetooth 5.1
  • Universal Intercom
  • Advance Noise Control™
  • Max 1.6KM Range
  • HD Speaker
  • Audio Multitasking
  • 22 Hour Battery
DESCRIPTION
The SMART HJC 21B is the 2nd Generation Standard Bluetooth Communication System model that supports 21B compatible HJC helmets, with structural interfaces that users can easily mount on HJC helmets. Based on the BT 5.1 low power system, the 21B offers Bluetooth 4-way intercom functionality, with over 22 hours of talk time. The enhanced sound provides users with an HD speaker, to enrich mid-to low-pitched sounds.