Bluetooth: 5.0 Transmission distance: about 10-15 meters Channel: Mono Material: ABS plastic Output power: 3W Charging voltage: 5V Connection method: wireless Bluetooth, AUX audio cable Whether single or double ear: unilateral hands-free Use time: 5-6 hours Battery capacity: 1400mAh Function: FM, AUX audio, dual alarm clock, Bluetooth speaker, hands-free calling, LED display, voice prompt, Color: white, red, gray, black Package List 1* Bluetooth alarm clock 1* Data cable 1* User manual 11. Dual alarm clock design: There are two independent alarm clocks that can be set and used independently. In addition to the internal alarm ringtones, you can also set the ringtone of FM or TF card music, adjust the volume of the alarm, and personalize the alarm by loading your favorite songs into the storage card (not included). The alarm volume gradually increases to wake you up. 22. Hands-free calling and FM function: Hands-free call with built-in microphone. During a call, use the speaker as a speaker, and then put your hand and the built-in microphone freely together. Convenient for your life. Bluetooth speaker and FM radio are two in one, you can easily receive FM radio to listen to music anytime, anywhere. To save money, there is no need to purchase FM radio. Convenient for your life. 33. LED display of dimmer: Large LED screen display, time and content at a glance, supports three different brightness adjustments, you can read before going to bed and accompany sleep after sleep; brightness can be adjusted flexibly. The indoor temperature (°C or °F) displays an alarm, the battery is clearly visible, the number is large enough, and it is easy to see. 44. Multiple playback options: Support Bluetooth wireless playback, memory card playback, AUX audio cable playback, you can choose to enjoy different music playback methods. 55. Shocked bass: Equipped with two large 40mm speakers and subwoofer diaphragm, the high-pitched, bright and undistorted explosive power can meet your ears& 39; pursuit of sound quality.