6. How is the EH3 NC RF signal quality?Is the connection stable?

A: EH3 NC Bluetooth signal can reach 30m in open space and 10m in partition wall.
However, due to the complexity of Bluetooth band and environment, there may be unstable connection and short connection distance in complex environment.Because of signal shielding devices in high-speed railway stations and airports, Bluetooth connection instability will also occur.