User Manual for Questyle models including: 2AEKH-M18I, 2AEKHM18I, M18i Mobile Headphone Amplifier with DAC, M18i, Mobile Headphone Amplifier with DAC, Headphone Amplifier with DAC, Amplifier with DAC, DAC, Amplifier
Questyle Audio Technology Co., Ltd M18I Mobile Headphone Amplifier with DAC 2AEKH-M18I 2AEKHM18I m18i
M18i Description of keys and interfaces Mode Switch Microphone Power key VOL+ VOL - Mult-function /Gain Adj. Key Smartphone mode PC mode Blutooth mode 4.4mm balanced earphone output jack 3.5mm SE earphone output jack USB Audio input port OLED Display area Type-C USB Charging port M18i Audio Input and output connection Smartphone / Tabet / PC USB Audio input port Earphone / Headphone 4.4mm balanced earphoen output jack 3.5mm SE earphone output jack Smartphone mode pc Mode Bluetooth Mode 1. Source Input mode switching operation instructions Mode Switch 1.1 Smartphone Mode - Put the Mode Switch to "Smartphone Mode" OLED displays the current source mode accordingly. - Connect the Smartphones to M18i USB Audio input port via L-C cable or C-C cable - Play music on the smartphonesOLED displays corresponding audio formats and sample rates 1.2. PC Mode - Put the Mode Switch to "PC Mode" OLED displays the current source mode accordingly. - Connect the PCs/tablets to M18i USB audio input port via C-C cable (The unit is equipped withType-C to Type-C OTG data cable and USB2.0 Type-A to Type-C adapter. - Play music on the PCs/tabletsOLED displays corresponding audio formats and sample rates 1.3. Bluetooth Mode - Put the Mode Switch to "Bluetooth Mode" OLED displays the current Bluetooth mode accordingly. - When switch to Bluetooth mode for the first timeM18i will enter pairing mode automatically. OLED displays the pairing status accordingly - Search and Select"M18i"on the Setup menu of Bluetooth source devices(eg mobile phones/PCs/tablets) to connect . After connect successfully, the OLED shows the paired icon. - Play music on the Bluetooth source devicesOLED displays corresponding audio formats and sample rates. - During Bluetooth playback status, single press key"MFB"to Pause and Play the music. OLED displays corresponding status - During Bluetooth playback statusDouble press key"MFB"to jump to Next track - When call is incomming, single press "MFB" to answer, and double press"MFB"to hang up. - During the phone calling and outgoing calling, single press "MFB"to hang up. RemarkWhen disconnect the Bluetooth, OLED disaplys "Disconnect icon". Long press key"MFB "2s to enter bluetooth pairig mode again. VOL+ VOL I 2. Volume Adjustment - Single press "VOL -"to decrease the volume level by 1 step,Press and hold"VOL -" decrease the volume level continuously - Single press "VOL +"to increase the volume level by 1 step,Press and hold"VOL +" increase the volume level continuously - Volume range is from 0 to 31, OLED displays the corresponding volume icon and level . Remark: Long press Power key for 10s to restore to factory default volume 31. MFB key /Gain Adj. Key 3. GAIN Adjustment - In "Smartphone Mode"and "PC Mode". - Single press key"GAIN"same as key"MFB"to adjust the earphone Gain to HIGHT or LOWOLED display "GAIN H" "GAIN L"accordingly to fit different impedance of earphones Remark: Long press Power key for 10s to restore to factory default Gain high. 3. Battery function Battery Charge - Connect the charging cable (5V 2A) via the charging port - In Woring modeOLED display the charing status - In Off modeConnect the charing cable will wake up the unit and display the charging stauts Battery level indicator - In working modeOLED display the corresponding volume level Remark -When battery is low, OLED will display Low battery and indicate the user to charge. power key 4. Power On and Power Off - Press and Hold Key "POWER"for 2sM18i will power onOLED display start logo " Questyle" and enter the selected Audio Source input mode(Bluetooth/PC/Smartphone modes). - After power onOLED will display Audio source, audio format, audio sample rate accordingly. - Press and Hold Key "POWER"for 2s again to power off the unit OLED display turns off. Remark: - When no key pressed for 1 minute. the unit will enter DIM mode, at this time the OLED dim off to 20% brightness. in DIM mode, operate key press will enter DIM mode and OLED returns to 100% brightness. - When no key pressed and no USB audio input and no Bluetooth device connected for about 4 minutes, the M18i then will auto enter power off mode to save battery Packing and Accessories QTY M18i unit 1 Type-C to Type-C OTG data cable(~12cm) 1 Type-A to Type-C Adapter 1 Warranty card 1 User Manual 1 Remark MFi certified M18i Warranty card User Manual Type-C to Type-C data cable Type-A to Type-C Adapter This device complies w it h part 15 of t he FCC Rules. Operat ion is subject t o t he f ollow ing t w o condit ions: (1) This device may not cause harmf ul int erf erence, and (2 ) t his device must accept any int erf erence received, including int erf erence t hat may cause undesired operat ion. Any changes or modif icat ions not expressly approved by t he part y responsible f or compliance could void t he user's aut horit y t o operat e t he equipment . NOTE: This equipment has been t est ed and f ound t o comply w it h t he limit s f or a Class B digit al device, pursuant t o Part 15 of t he FCC Rules. These limit s are designed t o provide reasonable prot ect ion against harmf ul int erf erence in a resident ial inst allat ion. This equipment generat es, uses and can radiat e radio f requency energy and, if not inst alled and used in accordance w it h t he inst ruct ions, may cause harmf ul int erf erence t o radio communicat ions. How ever, t here is no guarant ee t hat int erf erence w ill not occur in a part icular inst allat ion. If t his equipment does cause harmf ul int erf erence t o radio or t elevision recept ion, w hich can be det ermined by t urning t he equipment of f and on, t he user is encouraged t o t ry t o correct t he int erf erence by one or more of t he f ollow ing measures: -- Reorient or relocat e t he receiving ant enna. -- Increase t he separat ion bet w een t he equipment and receiver. -- Connect t he equipment int o an out let on a circuit dif f erent f rom t hat t o w hich t he receiver is connect ed. -- Consult t he dealer or an experienced radio/ TV t echnician f or help. The device has been evaluat ed t o meet general RF exposure requirement . The device can be used in port able exposure condit ion w it hout rest rict ion.Microsoft PowerPoint 2013 Microsoft PowerPoint 2013