SZE BT254ITEM NAMEBLUETOOTH EARPHONEModel numberSZE BT254Bluetooth versionV4.0 CSRImpedance32 ΩTransmission range10 meterSupport profileA2DP/HSP/HFPHandsfree typeStereoTalk timeUpto 4 hrsMusic playback timeupto 5 hrsStandby time15 days maxKey PointDual pairing can connect 2 device at a timeiOS devices can show battery status of BT deviceCVC Noise reduction for superior callingSpell out incoming caller number Super long stand by timeSmall efficient speakers for powerful sound & rich bassHighly sensitive Microphone for clear voice pickup with call button