<p><span style="font-size:22px;font-family:&quot;times new roman&quot;, times, serif"><strong>Description</strong></span></p><p><span style="font-size:20px;font-family:&quot;times new roman&quot;, times, serif">Bluetooth sleep headphones, 3D eye mask, wireless air travel, Bluetooth 5.0 headband, soft, elastic and comfortable music headphones</span></p><p><span style="font-size:20px;font-family:&quot;times new roman&quot;, times, serif">Bluetooth eye mask</span></p><p><span style="font-size:20px;font-family:&quot;times new roman&quot;, times, serif">The Bluetooth sleep eye mask adopts the V5.0 program, features a dual-ear stereo design, is made of comfortable cotton fabric, and is breathable, comfortable and soft. For people with sleep difficulties, they can fall asleep gradually while enjoying music, which can also reduce their contact with the outside world. The interference of noise provides a quiet sleeping environment. Whether you are resting at work or sleeping at night, the Bluetooth sleep eye mask can help improve sleep quality. It&#x27;s a magical sleep aid!</span></p><p><br/></p><p><span style="font-size:20px;font-family:&quot;times new roman&quot;, times, serif">Bluetooth connection: Supports iOS, Android, Mac and Windows</span></p><p><br/></p><p><span style="font-size:20px;font-family:&quot;times new roman&quot;, times, serif">Model: 3D Eye Mask</span></p><p><span style="font-size:20px;font-family:&quot;times new roman&quot;, times, serif">Bluetooth Protocol: V5.0</span></p><p><span style="font-size:20px;font-family:&quot;times new roman&quot;, times, serif">Frequency range: 20HZ-20KHZ</span></p><p><span style="font-size:20px;font-family:&quot;times new roman&quot;, times, serif">Charging voltage: 3.7V-4.2V</span></p><p><span style="font-size:20px;font-family:&quot;times new roman&quot;, times, serif">Sensitivity :88 dm</span></p><p><span style="font-size:20px;font-family:&quot;times new roman&quot;, times, serif">Signal-to-noise ratio: 90db</span></p><p><span style="font-size:20px;font-family:&quot;times new roman&quot;, times, serif">Speaker impedance: 32-15%</span></p><p><span style="font-size:20px;font-family:&quot;times new roman&quot;, times, serif">Speaker specification: φ30mm</span></p><p><span style="font-size:20px;font-family:&quot;times new roman&quot;, times, serif">Working range: 10m</span></p><p><span style="font-size:20px;font-family:&quot;times new roman&quot;, times, serif">Charging time: 2 hours</span></p><p><span style="font-size:20px;font-family:&quot;times new roman&quot;, times, serif">Usage time: 10 hours (50% volume)</span></p><p><span style="font-size:20px;font-family:&quot;times new roman&quot;, times, serif">Material: Crystal velvet composite sponge base fabric: Knitted cotton</span></p><p><br/></p>