1. Úvod
Thank you for choosing the JTEMAN Adjustable Cell Phone Stand with Bluetooth Speaker and Charging Function. This innovative 3-in-1 device combines a versatile phone stand, a powerful Bluetooth speaker, and a convenient power bank, designed to enhance your mobile experience. This manual provides detailed instructions for setup, operation, and maintenance to ensure optimal performance and longevity of your device.

Figure 1.1: The JTEMAN 3-in-1 Cell Phone Stand, showcasing its primary functions as a phone holder, speaker, and charging device.
2. Konec produktuview
2.1 Obsah balení
- JTEMAN Adjustable Cell Phone Stand with Bluetooth Speaker and Charging Function
- Nabíjecí kabel USB-A na USB-C
- Uživatelská příručka
2.2 Součásti zařízení

Figure 2.1: Detailed diagram of the JTEMAN Cell Phone Stand, highlighting key components and controls.
- Zkontrolujte stav baterie: Indicates the remaining power of the built-in 5000mAh power bank.
- Volume+/Previous Song: Increases volume with a short press, skips to the previous song with a long press.
- Tlačítko zapnutí/vypnutí: Powers the device on or off. When connected to a computer as a speaker, pressing this button can switch between Bluetooth mode and AUX (computer speaker) mode.
- Volume-/Next Song: Decreases volume with a short press, skips to the next song with a long press.
- Pause/Handsfree Call: Plays or pauses audio. Also used to answer or end hands-free calls.
- Type-C charging input port: Used to charge the device's internal battery.
- USB-A charging output port: Used to charge external devices like smartphones or tablets.
3. Nastavení
3.1 Počáteční nabíjení
Before first use, fully charge your JTEMAN device. Connect the provided USB-A to USB-C cable to the Type-C charging input port (6) on the device and the other end to a compatible USB power adapter (not included). The power indicator will show charging status. A full charge typically takes 5-6 hours.
3.2 Nastavení stojanu
The stand features multiple angle and height adjustments for optimal viewing comfort. Gently adjust the top and bottom hinges to achieve your desired angle and height. Ensure your device is securely placed on the stand.

Figure 3.1: Demonstrates the adjustable angle feature of the stand for various viewpreferencí.
Video 3.1: A demonstration of adjusting the stand's angle and height, as well as charging a phone and iPad.
4. Návod k obsluze
4.1 Zapnutí/vypnutí
Press and hold the On/Off button (3) for a few seconds to power the device on or off.
4.2 Párování Bluetooth
- Ensure the JTEMAN device is powered on.
- Na svém mobilním zařízení (chytrém telefonu, tabletu atd.) povolte Bluetooth.
- Hledat available Bluetooth devices. You should see "Jteman L38" in the list.
- Select "Jteman L38" to pair. Once paired, you will hear a confirmation sound, and the device will be ready for audio playback.

Figure 4.1: Illustrates the simple Bluetooth pairing process with a mobile phone.
4.3 Using as a Cell Phone/Tablet Stand
Place your smartphone or tablet (compatible with 4-13 inch devices) securely on the adjustable stand. Adjust the angle and height as needed for comfortable viewing during video calls, movie watching, or reading.

Figure 4.2: The stand provides a hands-free solution for using your phone or tablet on a desk.
4.4 Funkce powerbanky
The built-in 5000mAh power bank allows you to charge your smart devices. Connect your device's charging cable to the USB-A charging output port (7) on the JTEMAN stand. You can charge your device while simultaneously using the stand and speaker functions.

Figure 4.3: Demonstrates the power bank feature, allowing you to charge your phone while it's on the stand.
4.5 Použití jako Bluetooth reproduktoru
After successful Bluetooth pairing, you can play audio from your connected device through the JTEMAN speaker. Use the Volume+/Previous Song (2) and Volume-/Next Song (4) buttons for audio control. The speaker delivers powerful stereo sound with deep bass and clear audio.
4.6 Handsfree hovory
With the built-in microphone, you can make and receive hands-free calls. When a call comes in, press the Pause/Handsfree Call button (5) to answer. Press it again to end the call.
4.7 Computer Speaker Function (AUX)
The included USB-A to USB-C cable can also be used for AUX connection to your desktop computer or laptop. Connect the USB-C end to the device's Type-C input port (6) and the USB-A end to your computer's USB port. Press the On/Off button (3) to switch between Bluetooth and AUX (computer speaker) mode for lossless audio transmission.

Figure 4.4: The device can be connected to a computer via USB for use as an external speaker.
5. Údržba
- Chraňte zařízení před extrémními teplotami, přímým slunečním zářením a vlhkostí.
- Zařízení čistěte měkkým, suchým hadříkem. Nepoužívejte abrazivní čisticí prostředky ani rozpouštědla.
- Zabraňte pádu zařízení nebo jeho vystavení silným nárazům.
- Pokud zařízení delší dobu nepoužíváte, skladujte jej na chladném a suchém místě a pravidelně jej nabíjejte, aby se zachovala jeho životnost.
6. Řešení problémů
| Problém | Možná příčina | Řešení |
|---|---|---|
| Zařízení se nezapne. | Slabá baterie. | Zařízení plně nabijte (viz kapitola 3.1). |
| Nelze spárovat přes Bluetooth. | Bluetooth not enabled on source device; device not in pairing mode; too far from source. | Ensure Bluetooth is on and search for "Jteman L38". Move closer to the device. Restart both devices. |
| Z reproduktoru není slyšet žádný zvuk. | Volume too low; device not paired; incorrect mode (AUX vs. Bluetooth). | Increase volume on both devices. Re-pair Bluetooth. Press On/Off button (3) to switch modes if using with a computer. |
| Externí zařízení se nenabíjí. | JTEMAN device battery low; incorrect port used; cable issue. | Ensure JTEMAN device is charged. Use the USB-A output port (7). Try a different charging cable. |
7. Specifikace
- Model: L38
- Značka: JTEMAN
- Kapacita baterie: 5000mAh lithium-iontová baterie (součástí balení)
- Doba nabíjení: Přibližně 5-6 hodiny
- Konektivita: Bluetooth, AUX (via USB-C input)
- Speciální vlastnosti: Built-in Microphone, Power Bank Function, Adjustable Stand
- Kompatibilní zařízení: Smartphones, Tablets, E-readers, Laptops (for speaker function)
- Compatible Device Size: 4-13 palců
- Materiál: Silicone (non-slip pad)
- Hmotnost položky: 1.12 libry
- Rozměry balení: 6.34 x 3.94 x 2.28 palce
- Barva: Černý
- První k dispozici: 27. června 2024
8. Záruka a podpora
For warranty information or technical support, please refer to the product packaging or contact JTEMAN customer service through the retailer where the product was purchased. Keep your purchase receipt as proof of purchase.
You can also visit the official JTEMAN store on Amazon for more information: JTEMAN Store



