WARNING: California’s Proposition 65
Proposition 65 Warning for California Consumers
HJC Smart 21B Bluetooth Commnunication System
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.
New or Brand New - Brand new item in original packaging (original manufacturer's warranty may apply).
Refurbished - Professionally restored and in perfect working condition. Original packaging may be missing or slightly damaged.
Used - Item has seen limited use but remains in good working condition. May show some limited signs of wear with small scratches or cosmetic blemishes. May arrive with damaged packaging or be repackaged.
Refurbished, Without Tags - Same as refurbished. Item may arrive with mising labels or tags.
Refurbished, Last Call - Same as refurbished. Last call or closeout item.
Wrap a cloth measuring tape around your head just above your eyebrows and ears. Pull the tape comfortably snug, read the length, repeat for good measure and use the largest measurement.
SIZE | HEAD (CM) | HAT SIZE | HEAD (IN) |
---|---|---|---|
3XS | 50 - 51 | 6 1/4 - 6 3/8 | 19 3/4 - 20 1/8 |
2XS | 51 - 52 | 6 3/8 - 6 1/2 | 20 - 20 1/2 |
XS | 53 - 54 | 6 5⁄8 - 6 3⁄4 | 20 7⁄8 - 21 1⁄4 |
S | 55 - 56 | 6 7⁄8 - 7 | 21 5⁄8 - 22 |
M | 57 - 58 | 7 1⁄8 - 7 1⁄4 | 22 1/4 - 22 7⁄8 |
L | 59 - 60 | 7 3⁄8 - 7 1⁄2 | 23 1⁄4 - 23 5⁄8 |
XL | 61 - 62 | 7 5⁄8 - 7 3⁄4 | 24 - 24 3⁄8 |
2XL | 63 - 64 | 7 7⁄8 - 8 | 24 3⁄4 - 25 1⁄4 |
3XL | 65 - 66 | 8 1⁄8 - 8 1⁄4 | 25 5⁄8 - 26 |
Wrap a cloth measuring tape around your head just above your eyebrows and ears. Pull the tape comfortably snug, read the length, repeat for good measure and use the largest measurement.
SIZE | HEAD (CM) | HAT SIZE | HEAD (IN) |
---|---|---|---|
YOUTH S | 49 – 50 | 61/8 - 61/4 | 191/4 - 193/4 |
YOUTH M | 51 – 52 | 63⁄8 - 61⁄2 | 20 - 201⁄2 |
YOUTH L | 53 – 54 | 65⁄8 - 63/4 | 207⁄8 - 211/4 |
YOUTH S/M | 49 – 50 | 61⁄8 - 61⁄4 | 191⁄4 - 193⁄4 |
YOUTH L/XL | 63/8 - 61/2 | 63⁄8 - 61⁄2 | 20 - 201⁄2 |