LED alarm clock $ 15.41 LEBluetooth version: Bluetooth5.0 Battery type: polymer lithium battery Support protocol: A2DP, AVRCP, HFP, HSP Battery capacity: 3.7v 2000mAh, 7.4wH Connection distance: about 10 meters (without barriers) Charging interface: MicroUSB, DC5V = 2A Audio interface: 3.5mm audio Music time: 32h Card port: Micro SD/TF card (maximum support 32G) Standby time: 98h (three levels of screen brightness) Support call: yes
