----highly recommended:
Reason one.Super penetrating power, uninterrupted partition wall;
Reason two.Using dual-channel technology, you can connect 2 Bluetooth devices at the same time for data transmission;
Reason three.Comply with 4.0 standard specifications, high speed, low power consumption;
Reason four.Can connect to smart bluetooth devices such as smartphones
1. Can connect 7 devices at the same time
2. The speed is 3M