| Item number | CRTWS-P91 |
| Bluetooth version | V5.3 |
| Chipset | JL7003D4 |
| Color | white、black |
| Support | A2DP/AVRCP/HFP/HSP/SPP |
| Waterproof level | IPX6 |
| Play time | 5-7 Hours |
| Charging time | 2 hours |
| Battery capacity | 40mah |
| Charging case battery capacity | 400mah |
| Audio Freqeuncy Range | 20HZ-20KHZ |
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