Check the setting of answering method on your cell phone and confirm if need some setting when connecting the Bluetooth device.
TOZO Crystal Buds are equipped with 4 microphones to reduce ambient noise through Dual-Microphone AI algorithm, so you can enjoy High-Fidelity audio and Crystal-Clear call even in noisy environments.
Compatible with USB-C cable and fast wireless charging, keeping the power at any times, achieving faster transmission speed and more convenient use experience.
Type: In-ear True Wireless
Model: Crystal Buds
Color: Black
Driver: φ6mm dynamic driver
Frequency response range: 20Hz - 20kHz
Audio codec: AAC/SBC
Call noise cancellation: Dual-mic ENC call noise reduction
Bluetooth version: Bluetooth 5.3
Effective Bluetooth range: 10m
Battery capacity: 50mAh(earphones)/470mAh(charging case)
Music play time (AAC, default setting, 50% volume)*: 9h (single charge)/40h (with charging case)
Cable charge time: 2h (earphones)/2h (charging case)
Charging port: USB Type-C
Wireless charging: Wireless charging supported
Water resistance - earphone: IPX8