Brand: Oppo Model: M33 Warranty Period: 7 Days Colour: Black Country of Origin: China Headphone Type: Neckband, In-Ear Bluetooth Version: V5.2 Bluetooth Range: Up to 10 m Frequency Range: 20 Hz – 20 kHz Microphone: Yes Noise Cancellation: Yes, up to 45 dB Water Resistance: IP55 Music Time: Up to 30 hours Call Time: Up to 28 hours Charging Time: Approx. 2 hours Battery Capacity: 220 mAh Weight: 0.090 kg
