Bluetooth 5.0 Wireless Headset Music Headphones 3D Sleeping Eye Mask Headband Feature: 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. Specification: Model: m5 Material: Memory foam Color: Black, Gray, Pink 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 Note: 1. Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you! 2. Please allow 1-3cm measuring deviation due to manual measurement. Package list 1 X Bluetooth Sleep Eye Mask 1 X Charging Cable 1 X Waterproof Bag 1 X Instruction
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