AEC BT501 Bluetooth Speaker with LED & Alarm Clock Black 1. Double alarm clock setting, full mirror digital display time, screen brightness three adjustable, intuitive and convenient. 2. Bluetooth 5.0, stable connection, low noise, effective distance up to 10 meters (accessibility). 3. 45MM large speaker, the sound is bright and not distorted. 4. Built-in high-definition call microphone, hands- calling, clear voice and no noise, so that the call is not ed. 5. Built-in 2000mAh lithium battery, charging time is about 5 hours, standby time is up to 98 hours, music playing time is 32 hours, LED time/display time is 45 hours. 6. Mini size, easy to carry, enjoy music anytime, anywhere. Specification: 1. Card playback, support Micro SD / TF card (maximum 32G). 2. Weight 350g. 3. Material: ABS. 4. Output power: 5W. 5. Audio jack: 3.5mm. 6. Charging interface: Mirco USB, DC 5V 2A.