Authorized Dealer. Full-chain Hi-Fi HardwareHiFi-class hardware, equipped with a large battery-powered process three times that of the traditional wireless earhook, resulting in a HiFi-class audio performance:The total harmonic distortion is less than 0.002% and the dynamic range is over 118dB.Reversible Charging CaseCompatible with a wider range of earphone sizes. Overturning the traditional design idea of putting Bluetooth ear-hook products into the charging case, placing the charging pins on the same side as the earphone shell, which can be compatible with large high-end in-ear headphones and customized in-ear headphones.Storage Bag, Replaceable DesignEVO adopts the design of separating the storage bag and the charging case, allowing users to change storage cases made of different styles and materials.Universal 0.78-2pin Port: Wider CompatibilityIt is compatible with most interchangeable earphones with 0.78 dual-pin socket (especially the concave female socket), and compatible with almost all interchangeable in-ear headphones of MOONDROP.Touch OperationMonaural-Binaural Automatic Reconnection: Support TWS Mirroring technology, which  can be used unilaterally or bilaterally, and automatically connect when leaving the charging case.Users are allowed to play music, answer calls, reset pairing and other operations by touching the touch panel area.DacDual Microphone ENC BeamformingUsing beamforming technology, the voice is collected by two separate microphones, which cancel the effect of external noise during call.IN THE BOXEVOStorage BagUSB CableManualService CardQC CertificateSPECIFICATIONSModel: EVO-HiFi True Wireless Ear-hook DAC & AMPBluetooth Version: Bluetooth 5.2Distribution Profile: A2DP / AVRCP / HFP / HSPCharging Port: USB-CBluetooth Range: ~15m (open environment)Fully Charged Time: ~2hCodec: aptX™ Adaptive / aptX™ TWS+ / aptX™ HD / aptX™ / AAC / SBCFrequency Response: 20Hz -20kHzTHD+N: 0.002% (1Vrms / 100KQ / aptX™ Adaptive)SNR: 115dB (aptX™ Adaptive)Dynamic Range: 118dB(A Weighting, aptX™ Adaptive)Impedance: 80mΩ