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- USA
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Ships within 48 hours · Estimated delivery Jun 13 - Jun 18
For Your Every Summer RSVP, with Code: SUMMER15
Description
BT-DN300 Di2 BatteryThe new DN300 Built In type battery features the same waterproof design that Di2 users have loved for generations. Now with 3 ports, it delivers stable power to Shimano's 12 speed road derailleurs (and shifters if a fully wired option is selected). Compatible with thinner next generation electric wire SD300 and systems after R9250 R8150 series Li Ion type Capacity: 500 mAH 3. 7Wh ( 2000km autonomy) Rated voltage: 7. 4V Charges through RD R9250 RD

Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.6 ★★★★★
Based on 991 reviews
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Product Reviews
★★★★★ 5
Very attractive and good fit
Size: X-Large, Color: White
My son loves it!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 24, 2026
★★★★★ 5
Well made Shirt
Size: Large, Color: Black
Thick, soft to the body, true to size and very comfortable. This top is well made and its pattern lends to be dress up or casual vibe
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 4, 2026
★★★★★ 5
You won't be sorry.
Size: X-Large, Color: Army Green
My husband loves this shirt. Really likes the material and the fit. Just ordered 2 more.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 12, 2026
★★★★★ 5
Great value
Size: X-Large, Color: White
Excellent fit. Great value and very comfortable.
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Reviewed in the United States on December 29, 2025
★★★★★ 5
Men's Mock Turtleneck T-shirt
Size: Medium, Color: White
I'm happy with the shirt, it was as advertised. Thanks for the fast service
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 21, 2026
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