X15 Bluetooth-compatible 5.3 Air Conduction Wireless Running Earphones Open Ear Sports Headphones (No CE Certificate) - Black

• Using the principle of air conduction sound transmission, the sound is transmitted through the facial bones, no need to plug in the ears, listening to songs for a long time without pain
• Reliable protective performance, sweatproof, rainproof and splashproof, suitable for daily commuting, sports, etc.
• A new generation of low-power 5.3 chips, the connection is simpler and faster, the signal is more stable and the transmission is faster, allowing you to enjoy wireless freedom

Specification:

• Bluetooth-compatible version: V5.3
• Supported protocols: a2dp\avctp\avdtp\avrcp\hfp\spp\smp\att\gap\gatt\rfcomm\sdp\l2cap profile
• Bluetooth-compatible frequency: 2.402G-2.408G
• Signal to noise ratio: 92DB
• Sensitivity: 90DB
• Transmission distance: more than 10 meters
• Control method: touch
• Amplifier: no
• Headphone battery: 55mAh
• Playing time: 6-7 hours
• Headphone charging time: 1-2 hours
• Speaker specification: 14.2 16Ω
• Audio range: 20HZ-20KHZ
• Audio channel: Stereo