Style B Model: Cycling Speed Display Wireless Bluetooth Speaker PLUS MZ-508Output power: 8W high powerBattery capacity: 2200mAh, listening time 12 hoursFunction: BT/TF/Clock/Riding Mode,Product parameters: 60% volume continuous work for 10-12 hoursStandby time: more than 300hrBluetooth range: 10 metersBluetooth version: 5.0Charging time: 2.4 hoursRated power: 8WWaterproof grade: IP67Packing list: one speaker, one charging cable, one instruction manualHook design Can't get rid of itCan hang backpacks, waistbands, bicycles, etc.where needed, stronger than lanyardsLightweight PortableSmall and thin, no power fetters, wherever you go,you can hear it wherever you go,and carry itwith you without stressHandsfree Easy to answerOne-click answering of incoming calls,no noise and no delay in noisy environments,just like a face-to-face callDetonate amazingDynamic sound45mm suspension resonance full-frequencyinternal magnetic horn, detonating heavy bassSupport TF cardPlug and playMicro SD card pre-stored music plug and play,convenient and fastIP67 waterproof ratingWaterproof and anti-drop body,can resist rain splash, wind and sand,and daily fallsBluetooth 5.0Stable transmissionUsing Bluetooth 5.0 technology,10 meters stable transmission, fast connection,the signal is not stuckHigh capacityLong battery lifeBuilt-in high-performance 2200mAh lithium battery,longer battery life, accompany you tosing all day