Bluetooth version: Bluetooth 5.0 – Frequency: 2.4 ~ 2.48G Hz – Transmission distance: Up to 10m – Communication protocol: HFP, HSP, A2PDP, AVRCP – Frequency response: 2.4GHz – Microphone sensitivity: -45dB – Power: Built-in rechargeable Li-ion battery – Charging voltage: 5V – Charging time: 2 hours – Battery Capacity of the Headset: 150mAh – Call time: 6/7h – Play time: 6/7 h – Standby time: 160 hours – Color: Black – Packagingwhat’s in the Box: 1 * Wireless Bluetooth Earphone 2 * Ear hooks 1 * USB charging cable 1 * User manual. রিলেটেড প্রোডাক্ট