Huawei's AI Cube smart speaker isn't a cube, but it does double as a 4G router
Huawei E5180 4G Lte Band 1/3/7/20/38 (FDD 800/1800/2100/2600 and TDD 2600MHz) Mobile Cube Router - China 4G Router and 3G Router price | Made-in-China.com
Huawei E5180S 4G WiFi Cube Home Wireless Router Support Huawei Mobile WiFi App | eBay
Huawei B900 AI Cube + Smart Speaker High speed 4G Router with LTE Cat6 Modem NEW | eBay
Huawei AI Cube Router Review: Get Unlimited 4G Broadband From Three - TigerMobiles.com
HUAWEI AI Cube Smart Speaker with LTE Mobile Connection (CAT.6), Built-in 4G Router, Amazon Alexa, Up to 300Mbps Download Speed, High Power Speaker - White : Amazon.com.be: Electronics