Wireless SHIDU Tour Guide Voice Amplifier S20
| Parameters | |
| Model: S20 | Type：UHF wireless voice amplifier |
| Appearance craft：ABS+UV | Play-time：10-15 hours |
| LED screen：1.22 inches LED screen | Charging time：3-5 hours |
| Size：116mm*88mm*43mm | SNR：≥90db |
| Product weight：251g | Battery capacity：2200mAh |
| Package weight：529g | Connector：TF card/U flash disk |
| Input：5V 500mA | AUX format：MP3 |
| Output power：10W | Audio input：Nonsupport |
| Frequency response：90Hz~18KHz | Distortion：≤1% |
| Amplify coverage：1000㎡ | Color：Black, Blue |
| Features：Amplify、MP3 playerNon-volatile memory, long standby、 Double voice coil, Fashion LED screen | |
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