JOYROOM JR-HL2 Wireless Bluetooth Headset BT 5.0 chip, 10 meters efficient and stable transmission distance, fast connection, strong anti-interference. 40mm large speaker, powerful mega bass sound effect. 300mAh large capacity battery, 20 hours of long battery life, stable transmission sound. Multi-purpose, free to listen to music by wired/wireless dual-mode. Foldable design, light and portable. Multifunctional freestanding button, easy one-button operation, free to control the music, and pick up/hang up the phone