The company owns two factories, one of which is committed to manufacturing calculators, another focuses on the production&development of mobile powers and bluetooth speakers, so, our products cover:
1) students calculators ranging from primary school, junior middle school, to high middle school calculators
2) wireless speaker
3) mobile powers
We have passed the CE/ FC/ ROHS accreditation, and ISO9001 and ISO14001 accreditation.
Our products’ quality is very stable and superior, and the performance or parameters are outstanding.
|Model Number||Color||Description||More details|
|Loudspeaker output: 3W||ODM&OEM|
|Playback time: 3~4h|
|Working voltage: DC3.7V～4.2V|
|Bluetooth Version: V5.0|
|C1 dimension: 33*38mm|
|C2 dimension: 35.5*40mm|
|C3 dimension: 40*46mm|
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TIANYAN is a professional manufacturer of electronics products.