DIY Assembly Building Blocks Electric Locomotive Harmony 3 (Full English Version)

This DIY building block set features a Harmony 3 diesel locomotive with electric power. It includes a RWY main control module, 3.7V 100mAh lithium battery, high-performance motor, and 2.4G remote control. Functions: forward, backward, and smartphone app control. Charging via USB (Android port) takes about 60 minutes for 4-6 minutes of play. Remote requires 2 AAA batteries (not included). Control range: ≥10m

SKU: YUXING-0825 Category: Last updated: Jul 26, 2026
SKU: YUXING-0825Factory model: 12026Updated: Jul 26, 2026

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Guangdong Yuxing Technology Industrial Co., Ltd
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Source Factory · Chenghai, Shantou (Guangdong)
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This DIY building block set features a Harmony 3 diesel locomotive with electric power. It includes a RWY main control module, 3.7V 100mAh lithium battery, high-performance motor, and 2.4G remote control. Functions: forward, backward, and smartphone app control. Charging via USB (Android port) takes about 60 minutes for 4-6 minutes of play. Remote requires 2 AAA batteries (not included). Control range: ≥10m

Specifications

Region

Supplier type

Factory model

12026

Packaging

color box

Qty per carton

10

Packaging size (cm)

41.5 × 29.5 × 9

Carton size (cm)

49 × 44 × 62.5

Carton volume (CBM)

0.134

Carton volume (CUFT)

4.732

Gross weight (kg)

19.8

Net weight (kg)

18.5

Frequently Asked Questions

What developmental skills can a child build by assembling this Assembly Building Blocks Electric Locomotive Harmony 3?
Assembling the Assembly Building Blocks Electric Locomotive Harmony 3 can build STEM basics, creativity, fine motor skills, focus & concentration, following instructions, and spatial reasoning.
Does this Assembly Building Blocks Electric Locomotive Harmony 3 work as a calm, focused indoor activity for children?
Yes, the Assembly Building Blocks Electric Locomotive Harmony 3 offers screen-free quiet play, providing a calming, focused indoor activity for children.
Who would enjoy receiving this Assembly Building Blocks Electric Locomotive Harmony 3 as a gift?
The Assembly Building Blocks Electric Locomotive Harmony 3 would be enjoyed as a gift for brick-building fans, or for parent-child building and display model scenarios.
Do you accept OEM or ODM customization?
Yes, Guangdong Yuxing Technology Industrial Co., Ltd accepts OEM & ODM customization for the Assembly Building Blocks Electric Locomotive Harmony 3.
Which safety certifications do the products hold?
The Assembly Building Blocks Electric Locomotive Harmony 3 holds certifications: EN71, CPC, EN62115, ASTM F963, CE, GCC, and BSCI.

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