Features:-10mm copper speaker, the sound conduction is clear.-Net weight is 9g, It’s as light as a goose feather, and it won’t be tired after long wear.-Three keys operation. Plus Key, Minus Key, Multifunction key. Easy operation and full function.-bluetrum 5357T V5.0 bt profile, transfermission range is 10m and stable.-60 days long standby time, 55mAh lithium batterym. Charging for 60 minutes and listning music for 6 hours.
Specifications:Speaker unit: 10mmImpedance: 32R15%Frequence range: 20HZ-20KHZTransmission Range: 10mNo.of channels: Mono stereoCharging time: 1.5 hoursPlay time: around 15 hoursCalling time: around 17 hoursStand by time: around 200 daysBattery: lithium battery/150mAHNet Weight: around 9gCharging port: MICRO USB
Packgae List:1 * Single bluetooth Earphone1 * Charging Cable1 * Manual