Features: 1. Bluetooth 4.2 stable connection 2. Support hands-free calling 3. Support Bluetooth TF card and AUX cable to play music (TF card and AUX cable are not included) 4. Simple button operation 5. ABS material shell 6. With handle easy to carry 7. Small size Product specifications: 1. Bluetooth version: 4.2 2. Range: 10-30m 3. Charging voltage: 4.8V-5.2V 4. Working current: 150mA 5. Frequency: 2.402-2.480GHz 6. Power output: 3W 7. Microphone sensitivity: -38db 8. Battery capacity: 500mAh rechargeable lithium battery 9. Body material: ABS 10. Product size: 87x87x52.5mm 11. Weight: 170g