Awei T36 TWS 5.0 Wireless Earbuds.

Bluetooth version: Bluetooth V5.0 Support mode: L2CAP/A2DP1.2 (AVCTP1.3/AVDTP1.2/AVRCP1.3) Transmission distance: ≤10 meters (without obstacles) Speaker diameter: 13MM Speaker impedance: 32 ohm ± 10% Frequency response: 20Hz-20KHz Sensitivity: 92dB/±3dB Mark wind size: Φ4.0*1.5mm SMD microphone Mark wind sensitivity: -92dB/±3dB Output power: 20mW Working voltage: 3.3V-3.7V Working time: 4-5 hours Standby time: 210 hours Charging time: about 1.5 hours