TYPE: Compact size ear budsUNIT BATTERY: #10WORKING TIME: 80+ HoursCOMPRESSION: Hi/Low DLSC CompressionNOISE REDUCTION RATING (NRR): 28BLUETOOTH CABLE: USB rechargeableWORKING TIME: 5 hours per chargeCHARGING TIME: 2 hoursBLUETOOTH: CSR Bluetooth 4.1 - Range 10 m COAXIAL: MMCX ConnectorCIRCUITS: Hybrid analog/digital circuitsWEIGHT: 28 gramsLANYARD: Durable, No-tangle Cloth lanyardWARRANTY: 1-Year WarrantyAMPLIFICATION: 5X amplification levelISOLATION: Noise isolation microphonesWATERPROOF: IPX6 Rating