Sleep Headphones Bluetooth In ear to sleep with - Black

Invisible Sleep Earbuds Wireless Bluetooth 5.3 Noise Canceling Headphones for Side Sleepers - Black Newly upgraded LED high-definition power display, real-time sensing of headset and charging tray power
Large dynamic speakers paired with international tuning masters, redesign of high, medium and low frequency equalization restoration sound hierarchy
360° surround acoustic design, create a 360-degree surround sound that immerses you in the wonderful music
Configure a high Bluetooth V5.3 chip to improve transmission efficiency while reducing losses, better connection stability and sound smoothness that eliminates delay
Side sleeping without pressure on the ear, physical noise reduction and provides a calm and comfortable sleeping experience
Specifications:
Bluetooth version: V5.3
Bluetooth chip: JIELI 6983D2
Bluetooth distance: approx. 10m
Charging case battery: 300mAh
Headset battery: 30mAh
Speaker: F10 real copper ring
Listening and talking time: approx. 4 hours
Charging time: approx. 1 hour
Frequency: 20Hz-20KHz
Impedance: 32?
Sensitivity 115dB/mW
Charging case size: 5*5*2.2cm
Charging case + headphones weight: 28.5g
The package contains:
2 x headphones
1 x Charging case
1 x Charging cable
1 x strap
1 x English user manual
Other items are not included