Smart Wireless BT5.0 Headset Music Glasses Outdoor Sports Headphone Stable Pairing Built-in Speaker Wide Compatibility Black

Upgraded BT5.0 chip, stable performance, strong compatibility., Built-in speaker, unique acoustic cavity design guides the sound to form a directional beam, surround stereo audio is delivered directly to the wearer's ears., Ultra-light memory frame, good toughness, more in line with human facial contours., Built-in high-sensitivity microphone to improve call stability, intelligent noise reduction technology filters noise and calls as clear as face-to-face talks., Built-in two 80mAh lithium batteries, easy to charge, long endurance time.