Features 1. The Bluetooth cap speaker combines fashion and technology, fashion and sports design. 2. Stable Bluetooth connection, ultra-low power consumption, no need to use painful and easily detachable earplugs to block environmental noise. Enjoy music, voice assistant, and hands-free calls. 3. Bluetooth 5.0 and Excellent Sound Quality: Provides you with faster and more stable Bluetooth connection (up to 33 feet), and in addition, the wireless device is equipped with 2 stereo speakers to provide you with high-quality and clear sound 4. 2-in-1 hat and Bluetooth earphones: Wearing a Bluetooth hat allows you to enjoy music or answer calls without the need for additional headphones. 5. Soft and Comfortable: These skin friendly music hats keep your head comfortable, with enough elasticity to fit most head shapes. Specification Bluetooth version: V5.0+EDR. Wireless operating range: up to 33 feet Charging port: Micro USB Frequency: 2.402-2.480 GHz Rechargeable lithium-ion battery: 3.7 V/150 mAh Charging time: 2 hours Music playback time: up to 8 hours Call time: up to 10 hours Standby time: up to 15 hours Material: ABS Color: Black, Navy, White, Colour Size: 29 x 20 x 13 cm Weight: 160 g Package Include: 1x Outdoor Headset Hat 1x USB charging cable