1.Bluetooth solution: JL 6983D4
2.Bluetooth version: 5.4
3.Bluetooth frequency: 2.4GHZ
4.Effective Wireless range: 10M
5.Earphone battery: 30MAH
6.Charging case battery: 250MAH
7.Continuous listening time: 3-4H (low power consumption)
8.Driver: 13MM