1. Matching once it can have memory.
2. Bluetooth 4.2 is compatible with wireless devices.
3. DPS digital noise reduction 10 meter barrier free connection.
4. One to two function one earphone can connect to two devices indirect wire control clear call.
Function: Bluetooth player hands-free call.
Bluetooth: Bluetooth 4.0 + DSP
Frequency range: 2.4-2.48GHz
Transmission distance: 10 meters
Play time: 4-5 hours
Battery: 60mAh * 1
Charging time: 1.5-2 hours
Standby time: 180 hours