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Bullet Points: 【No need to wearing earphones when doing exercise】Sleep headphones bluetooth headband with built in bluetooth and speakers, allows you to listen music and answer callings freely, no hassle to wearing additional earphones, In addition, this bluetooth headband headphones sport sleep headband protect you from being disturbed by your mess hair and sweat. Enjoy a more convenient life style. 【3 in 1 Design】Bluetooth sleeping headphones & Bluetooth Sleep Mask & Bluetooth Sports Headband 3 in 1. Wireless headband headphones with Microphone enable to answer the call handsfree, not only Perfect for using in sports actives, it also suitable for side sleepers, this Bluetooth sleep mask sleep earbuds headband headphones can effectively block out light, enables you to sleep well in any position whether at home, at office, in a hotel or on the plane. 【High Quality Bluetooth Stereo Sound with Thin Speakers】Bluetooth Headband Headphones sleeping headband with Latest Bluetooth technology provide more stable connection with your phones, tablets, laptops or pc, Only 0.25 inch Thin speaker produce High-fidelity stereo sound quality and provide soft and comfortable music environment. 【2 Hours Quick Charging, 8-10 Hours Continuous Playing】 Built-in powerful battery chip, this sleep phone Bluetooth headband sleeping headphones only needs to be charged for 1~2H, the talk time/music playback time can reach 10 hours which is enough to support long time exercising like marathon, hiking, climbing. Disassemble and Washable Bluetooth Sleep Headphones music headband is more convenient to keep and clean. 【Comfortable & Skin-Friendly Bluetooth Headband】LC-dolida sleep headphones Bluetooth sport headband is made of high quality soft and skin-friendly materials. It is cool and soft, quick drying sport music headband makes you feel comfortable after sweating exercise. Good elasticity sleeping headphones suitable for various head shapes. Durable and easy to wash. Specification: Bluetooth version: 5.0 Bluetooth protocol: AGHSP Bluetooth solution: Lanxun Bluetooth transmission distance: 10 meters Headphone channel: stereo (2.0) Music playback time: maximum sound 7H, medium volume 10 hours Microphone distance: 1 meter Bluetooth standby time: 72H Battery capacity: 150ma/h Battery power: 0.55W Speaker impedance: 32 ohms Speaker power: 0.02W Frequency range: 2.4-2.4835GHz Sensitivity: 45db Transmitting power: 6dB Audio output distortion: 0.6% Audio output signal-to-noise ratio: 93dB Charging time: 1-2 hours Maximum input voltage: DC 5V Maximum input current: 150mah Maximum input power: 0.55W Weight: about 80g Size: about 27cm*10cm/10.63*3.94inch Packing List: 1*Bluetooth Headset 1*Cable 1*Instruction Note: 1. Due to different display screens and lighting effects, the actual color of the item may be slightly different from the color shown on the picture. 2. Due to manual measurement, please allow small deviations.