Model：CH-BT2, CH-BT2-4
| File Name | Date of Update |
|---|---|
| CH-BT2, CH-BT2-4 DECLARATION OF CONFORMITY (410KB) | 04/01/2026 |
| Version | Updated contents | Updated on |
|---|---|---|
| 3nd Edition | --- | Apr. 1, 2026 |
| 2st Edition | --- | Nov. 18, 2021 |
| 1st Edition | --- | Mar. 3, 2021 |
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