Shell material: plastic Color classification: pure time alarm free version full function version upgraded Bluetooth version Display mode: LCD digital display Power type: external power supply Size: 26 cm<img src="https://cc-west-usa.oss-accelerate.aliyuncs.com/24088cb5-cc1b-47e7-8255-ab2352ebb91e.jpg" style="font-size: 14px; max-width: 100%;"><img src="https://cc-west-usa.oss-accelerate.aliyuncs.com/9d6f9268-184e-4a82-ac7a-4dc05eaa85e9.jpg" style="font-size: 14px; max-width: 100%;"><img src="https://cc-west-usa.oss-accelerate.aliyuncs.com/3539f6a2-d44d-4d60-9f8d-a64328f67965.jpg" style="font-size: 14px; max-width: 100%;"><img src="https://cc-west-usa.oss-accelerate.aliyuncs.com/01af66d0-611e-43e2-9b38-ad3442a72c2b.jpg" style="font-size: 14px; max-width: 100%;"><img src="https://cc-west-usa.oss-accelerate.aliyuncs.com/ea5480c9-12db-4468-a848-19492b91497c.jpg" style="font-size: 14px; max-width: 100%;">

Style: Upgrade Bluetooth, Model: 220v US - Hongchuang electronic alarm clock for students