REMAX Car Speakerphone Headset Wireless Stereo Headphone Earphone With Stand for All Smartphone
Product Specification
Bluetooth Version 4.1
Micro USB charging port
Support HFP, HSP, A2DP, and AVRCP profiles
Connect with 2 Bluetooth devices at the same time
Operating Range: Up to 30 feet (10 meters)
50mAh rechargeable battery
Talk time: 4 hours
Standby time: 45 days
Charging time: about 1~2 hours
Unit size: 10mm
Frequency range: 20-20000Hz
Impedance: 16Ω±15%
SPL: 91±3dB
MIC: 42±3dB
Power: 20mW