🎧 New Air Max-m4 Hanging Neck Bluetooth Earphones – Wireless Freedom, HD Sound, Sport-Ready, Comfortable Fit for the Ultimate Music Experience!
| Active Noise-Cancellation | Yes |
| Style | In-ear |
| Support Memory Card | No |
| Wireless delay time | less than 30 ms |
| Charging time | 1-2hours |
| Working distance | 10m |
| Compatibility | It works with both of Android & iOS |
| Working time | 8-10 Hours |
