Overview:

1. Wear before bed, listen to soothing music to calm your heart, balance the secretion of hormones in your body, and guide you into a stable sleep state.
2. All-round three-dimensional shading, using a 3D curved shading design that fits the face to prevent light from penetrating and affecting sleep.
3. Smart Bluetooth 5.0, simple multi-function operation.
4. Comfortable, breathable and not stuffy.
5. Flexible and elastic sticker design, non-sticky hair.
6. Soft and foldable, can be carried around.
7.There are CE certification

Specification:
Material: Memory foam
Color: Black, Grey White, Pink, Dark Grey
Bluetooth protocol: V5.0
Operating range: 10m/32.8ft
Bluetooth search name: BT-01
Frequency range: 20Hz-20KHz
Charging voltage: 3.7V-4.2V
Sensitivity: 88dB
Signal to noise ratio: 90dB
Speaker impedance: 32Ω±15%
Speaker size: Diameter 30mm/1.18in
Charging interface: Micro USB
Charging time: 2h
Battery capacity: 200mAh lithium battery
Duration of use: 10h (50% volume)
Product size: 45x12cm/17.72x4.72in
Color box size: 16x12x6cm/6.3x4.72x2.36in
Product gross weight: 200g

Package Content:

1x Mask

1x USB cable

1x Manual

1x Box