Wireless Bluetooth Music Headband Running Sport Elastic Sweatband Headbands Sleeping Headwear Headphone Speaker Headset

Specifications: It can keep the sweat out of your eyes, keep the hair off your face. The elastic band can be easily adjusted to meet your specific needs and ensure maximum comfort. Great for all activities, like running, marathons, yoga, shopping or even dressing for work or school. It supports music, phone function and power display.   Item name: bluetooth bandana (removable wash) Material: Cotton Gender: Unisex Battery: 150 mah battery (included) Features: breathable, music and phone function, power display Size: 22cm x 6.5cm / 8.66 'x 2.56' (approx.) Bluetooth technical- parameters:   Bluetooth version: 5.0   Bluetooth protocol: AGHSP   Bluetooth solution: Blue News   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   Transmit 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