音为爱 D502

产品尺寸;220x100x52mm          功率；8Wx2                                    阻抗；4Ω,                     信噪比≥85db,                                音频范围100Hz-18KHz,           失真度≤0.5％，                共电；1800毫安高容量可冲锂电池。       充电时间2.5H;                 正常情况下用时3H左右          智能蓝牙语音提示 带NFC功能              蓝牙通话带插卡带      
内置无线麦克风（免提通话）
支持TF卡（最大可支持32GB）    支持插U盘播放 3.5MM 音频输入                                                                                                                
AUX音频输入                                                                                                                    DC-IN电源输入 Micro USB
读卡器功能
高效率2.0协议蓝牙接收功能USB充电功能
*双内磁A喇叭+双振膜
*状态指示灯                   音频文件格式：MP3