Latest Bluetooth V5.0 chip, high fidelity stereo sound, shocking bass effect, clear and stable continuous call;Ultra-low power consumption, can continuously play music for 10 hoursFast and stable transmission speed, barrier-free transmission distance of more than 20 meters;English voice prompts for power on, power off, successful pairing, low battery, maximum volume, etc;iOS system shows battery level and activates SIRI and Google Voice intelligent voice assistants;Ultra-thin speaker design of less than 1cmBluetooth specification: V5.0+EDR/A2DP/AVRCP/HFPFrequency range: 2.4026GHz-2.480GHzTransmission distance: more than 20 metersChannel: Stereo StereoSpeaker Parameters: 24 Ohm/30 mmSpeaker power: 10 mW * 2Signal-to-noise ratio: 104dBFunctions: Previous song, Next song Previous song, Next song, Volume up, Volume down, Play, Pause, Answer a call, Make a call, Activate SIRI, Microphone intercomPlayback time: 10 hoursTalk time: over 9 hoursCharging time: approx. 1.5 hoursButtonsVolume down/previous songPower on/off/play/pause/answer/hang up/redialVolume up/Next songPress and hold the play/pause button for 2 seconds to reject a call.Double-click the "+" button to activate/deactivate SIRI on the iSO deviceColour:blueMaterial:Polar FleecePackage Contents:1 * Eye Mask Bluetooth HeadsetOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.