| Certification | FCC, ce, RoHS, Proposittion 65, ISO9001, KC | Brand Name | OEM |
| Model Number | S18 | Type | Mini Amplifier |
| Channels | 1 | Place of Origin | Guangdong, China |
| Output Power | 5W | Lithium battery | 3.7V 1800mAh |
| Charging time | 3-5 hours | Working time | 6~10hours |
| Charging Voltage | DC 5V, 1A | Weight | 211g |
| Product size | 108*88*37mm | Frequency response | 90Hz~18000Hz |
| Application | Interactive teaching, tour guiding, training and etc. |