Feature:1. Built‑in Bluetooth 5.1 dual‑mode chip supports simple pairing, near‑field pairing and near‑field connection.2. Support Hi‑Fi aptX, SBC, MP3, ACC, lossless pure digital audio decoding. S3D stereo enhancement (high quality, Hi‑Fi, super stereo digital audio enjoyment).3. It is suitable for all kinds of mobile phones and tablets. The talk time is up to 8 hours and the standby time is up to 11 days.4. Support voice recognition to answer and reject incoming calls. Support voice dialing (requires phone support).5. Supports CVC broadband voice and narrowband voice connection, with wind suppression, high‑definition voice notification effect, support for upper and lower song selectionSpecification:Item Type: HeadsetMaterial: ABSBluetooth Version: Bluetooth 5.1 Dual-Mode ChipBuilt-In Battery: 180mah rechargeable, non-replaceable polymer lithium batteryCharging Time (Maximum): 60 Minutes (Full Charge)Operating Distance (Effective Range): Up to 10m / 32.8ftHow to Use:1. Pairing for the first time: Turn the power switch to the power button position, the red and blue LED lights flash alternately, the headset enters the pairing state, turn on the Bluetooth of the mobile phone, and set it to the search state, the Bluetooth headset is searched, and the system prompts that it is pairing until The system prompts that it is connected.2. Multi-point connection: After you complete the pairing of the headset and the mobile phone, you may want to pair the headset with another mobile phone or a new headset. At this time, you can disconnect the Bluetooth of this mobile phone, and then turn off the Bluetooth headset with another Re-pair the two mobile phones. After the pairing is completed, the two mobile phones can automatically connect to the two mobile phones when the Bluetooth of the two mobile phones is turned on.Packag