Description: Compatible with Bluetooth playback devices - This is a set of Bluetooth 5.0 wireless earbuds. The wireless headphones are compatible with all smart cell phones(ios android), smart TVs, laptops, tablets, MP3 players, etc. This Bluetooth earphones provides all the features you need: play/pause music, switch the previous/next track, adjust the volume +/-, and pick up call, or activate SIRI/google assistant. - Clear hands free calls:The call clarity of this Bluetooth earphones may vastly superior to your expectations, and you can use them to replace your bulky headset. - Specifications: Bluetooth Version: 5.1 Material: ABS + PC Effective Range: 5M Playing Time: 3-4 hours Charging Time: About 1 hour (Headset)/ About 2 hours (Charging Case)How to Use: Short Touch: Pause/Play – Left/Right Double Click Last Song – Left Click for Three Times Next Song – Right Click for Three Times Answer/ Hang up – Left/Right Double Click - Long Touch: Active Noise Cancellation: Touch the left earphone for 2s Siri Voice Assistant: touch right earphone 2s Reject a Call: touch the left/right earphone for 2s Power on: touch left/right earphone for 3 seconds Power off: touch left/right earphone for 8 seconds