Specifications‎:‎Compatible with most cellphone and devices with bluetooth capabilities‎.‎High quality soud with HD speaker and enhanced BASS effect‎.‎CD quality sound with apt‎-X codex support‎.‎Comfortable‎,‎ flexible and light‎.‎Easy to handle ear set with magnetic properties‎.‎Type‎:‎ EarphoneConnectivity‎:‎ Bluetooth WirelessEarpiece Design‎:‎ Earbud ‎(‎In Ear‎)‎Fit Design‎:‎ Neckband‎:‎ Closed BackSound Track‎:‎ StereoBluetooth Version‎:‎ V4.0Amplifier Output Power‎:‎ RMS 2x18MW ‎(‎THD = 10%‎)‎Power Amplifier SNR‎:‎ ≥90dBInput Voltage‎:‎ 3.7V Rechargeable Lithium Battery ‎(‎Included‎)‎Play Time‎:‎ 4‎-5 HoursTalk time‎:‎ about 8 hoursCharging Time‎:‎ 1.2‎-1.5 hoursCharging Input Voltage‎:‎ DC5V 50MAHSpeaker Specifications‎:‎ 2x32Ω 20MW Φ10mmFrequency Range‎:‎ 20Hz‎-20KHzSensitivity‎:‎ ≥100db ± 2dbSNR‎:‎ ≥80Db Transmit/Receive Frequency‎:‎ 2.4 ‎-‎-‎- 2.48GHzDistance‎:‎ 10 m AccessibleLength‎:‎ 65cm/25.59‎"‎ ‎(‎Approx‎.‎‎)‎Notes‎:‎Due to the light and screen setting difference‎,‎ the item‎'‎s color may be slightly different from the pictures‎.‎Please allow slight dimension difference due to different manual measurement‎.‎The color‎(‎black‎,‎ white‎)‎ of the earbuds will be sent by random‎.‎