Bluetooth 5.0 +EDR
Supports A2DP, AVRCP, HFP, HSP
Up to 10 metres wireless range
Bluetooth frequency range: 2402 MHz - 2480 MHz
Up to 5 hours playback time / 240 hours standby time
Charge time: Approx. 1.5 hours
Charging input: USB DC 5V
Battery: Rechargeable 180 mAh Li-Ion
AUX-port: 3.5 mm Mini-Jack
Micro USB port for charge
TF port for playback from TF/Micro-SD card with MP3 content.

Earphone:
Frequency range: 20 Hz – 20 kHz
Impedance: 32 Ohms
Sensitivity: 110 dB ± 3 dB
Driver unit: 40 mm Neodymium

Microphone:
Frequency range: 30 Hz – 16 kHz
Impedance: 2200 ohms
Sensitivity: -54 dB ± 2 dB
Directivity: Omni