User Manual for Trevi DJ 12E35 BT Wireless Headphones

Quick guide from the manual

The Trevi DJ 12E35 BT headphones feature wireless connectivity, an integrated microphone for calls, and an optional wired connection. Before first use, it is recommended to charge the battery for 3-4 hours. The headphones include voice prompts for status updates (Power On, Power Off, Pairing, Connected, Low power) which are pre-set in English and cannot be disabled.

Description of controls

• 1. EQ button: Pre-equalizations.
• 2. + button: Next song, Volume up.
• 3. - button: Previous song, Volume down.
• 4. Power button: ON/OFF, Play/Pause, Call Start/End.
• 5. LED indicator: Status light.
• 6. 3.5mm Audio Jack: Wired audio input.
• 7. USB Type-C Charging Socket: Battery charging port.
• 8. Microphone: For phone calls.

Battery charging

The headphones have an internal rechargeable battery.

1. Connect the included USB/USB Type-C cable to an external device with a USB port (computer, tablet) or a 5V USB power supply (not included).
2. Connect the cable to the charging socket (7) on the headphones.
3. The LED indicator (5) will turn red during charging and blue when fully charged.
4. When the battery is low, a "Low power" voice prompt will sound before the device turns off automatically.

Power on and off

To turn the device on or off, press and hold the Power button (4) for a few seconds until the corresponding voice prompt is heard. The headphones will turn off automatically after a period of inactivity if not paired.

Pairing with a wireless device

1. Turn on the headphones. The LED indicator (5) will flash blue and red, and a "Pairing" voice prompt will sound.
2. Enable wireless audio connection on your external device (phone, tablet, etc.).
3. Search for available devices and select "DJ12E35BT".
4. A "Connected" voice prompt will confirm successful pairing.

Note: Keep devices within 1 meter during pairing. If the connection is interrupted, it may restore automatically; otherwise, repeat the pairing procedure.

Music playback and volume

• Play/Pause: Press the Power button (4).
• Next song: Press and hold the + button (2).
• Previous song: Press and hold the - button (3).
• Volume up: Press and hold the + button (2).
• Volume down: Press and hold the - button (3).
• EQ settings: Press the EQ button (1).

Call handling

• Answer a call: Press the Power button (4) once.
• End a call: Press the Power button (4) once during the conversation.
• Reject a call: Long press the Power button (4).
• Redial last number: Quickly press the Power button (4) twice.

Wired connection

You can use the headphones as passive headphones by connecting them to an external device using a standard stereo jack/jack cable. Music playback is controlled by the connected device.

Technical specifications

• Wireless Version: V5.4
• Working distance: 10m (without obstacles)
• Transmission power: 2.5mW
• Frequency: 2.4GHz
• Battery: Rechargeable Lithium 3.7V, 200mAh
• Charging voltage: 5V
• Weight: 157g

Safety and battery disposal

Keep the device away from heat sources, moisture, dust, and strong vibrations. Do not cover ventilation slots. The battery removal and disposal should only be performed by qualified technical personnel. Do not dispose of the battery or the device in household waste; use designated collection centers.