This overview is for Batch Numbers T21D1, T21H1, and T21L1. If you have a newer batch, please scroll to the bottom for the latest overview!
Where to find the Batch Number
1. Transmitter Dock Overview & Function Table
① Power / Pairing Switch ⑥ Microphone Audio IN
② Curved Indicator ⑦ Optical Audio OUT
③ DC IN ⑧ AUX Audio OUT
④ Optical Audio IN ⑨ Lock Button
⑤ AUX Audio IN ⑩ Audio Input Select
Transmitter Function Table
|
Function |
From Status |
Action |
Curved Indicator ② |
|
Power on |
Connected to Power |
Slide the Power Switch ① to ON |
Flashing Blue once every 1 sec. |
|
Power off |
ON |
Slide the Power Switch ① to OFF |
Turned off |
|
Pairing |
ON |
Hold the Power Switch ① to PAIR for 2 sec. |
Flashing Red and Blue fast alternately |
|
Lock the Connection Between the Base and the headphones |
Connected |
Press and hold the LOCK button ⑨ for 5 sec. |
Red and Blue LEDs are on SIMULTANEOUSLY for 5 sec.(may look Pink) |
|
RESET |
ON |
Slide and hold the Power Switch ① to PAIR for 5 sec. |
Red and Blue LEDs are on SIMULTANEOUSLY for 2 sec.(may look Pink) |
|
Device Firmware Update (DFU) |
On without Connected |
Press and hold the LOCK button ⑨ for 12sec. |
Solid Red |
|
Charging Headphones |
Dock plugged into power source |
Put the headphones on Transmitter dock |
Staying on Red until fully charged |
2. Headphone Overview & Function Table
⑪ Power / PAIRING Switch ⑮ Charging Contacting Points
⑫ Indicator ⑯ Volume/Track Control
⑬ Charging Port ⑰ Play/Pause/Call Button
⑭ EQ Selection
Headphone Function Table
| Function | From Status | Action | LED Indicator | Voice Prompt |
| Power on | OFF | Slide the Power Switch ⑪ to ON |
Flashing Blue for 1 sec. | "Welcome to Avantree" |
| Re-connect | Standby | Slide the Power Switch ⑪ to PAIR | Flashing Blue twice quickly, then once every 5 sec. |
Beep |
| Pairing | / | Slide and hold the Power Switch ⑪ to PAIR for 2 sec. | Flashing Red and Blue alternately | "Pairing" |
| Reset | ON |
Hold down TWO Volume Buttons ⑯ together for 7 sec. |
Red and Blue are on for 2 sec. (looks Pink) | Beep |
| Play/Pause | Streaming Audio | Click the Play Button ⑰ |
/ | / |
| Adjust Volume | Streaming Audio | Click the Volume Button ⑯ | / | Beep |
| Beep | ||||
| Next/ Previous track | Streaming Audio |
Hold the Volume Button ⑯ for 1 sec. |
/ | / |
| Answer/End Call | With an incoming call | Click the Play Button ⑰ once |
/ | / |
| Reject Call | With an incoming call |
Press the Play Button ⑰ for 1 sec. | / | / |
| Active Voice Assistant | Connected with CellPhone | Quickly Double Click the Play Button ⑰ | / | / |
| Adjust EQ | Connected | Click EQ Button ⑭ | / | Beep |
| Device Firmware Update(DFU) | Paring Mode | Hold the three Buttons Play ⑰, V+ ⑯ and EQ ⑭ together for 10 sec. |
Turns OFF | / |
| Power OFF | ON | Slide the Power Switch ⑪ to OFF | Red for 2 sec. | / |
3. LED Indicator Table
| LED Indicator | Status | Means |
|
Transmitter Base Power / Pairing Curved Indicator ② |
Flashing Red and Blue Alternately | Bluetooth Pairing Mode |
| Flashing Blue once every 1 sec. | Disconnected/Attempting to Reconnect | |
| Solid Blue on Both ② and Codec Indicators |
Connected | |
| Turn Pink for 2 sec. | Pairing History Cleared | |
| Turn Pink for 5 sec. | Headphones Locked | |
| Solid Red | Charging the headphones | |
| Solid Red turns off | Headphones fully charged | |
| Transmitter Base Codec Indicator | Solid Blue | Headphone Connected |
|
Headphone Indicator ⑫ |
Flashing Red & Blue Alternately | Pairing Mode |
| Solid Blue | Connected | |
| Blue LED flash once every 5 sec. | Disconnected | |
| Solid Blue turns to Solid Red | Low battery | |
| Solid Red | Charging with USB cable | |
| Red LED off | Charging completed | |
| Turn Pink for 2 sec. | Pairing History (with other devices) Cleared |
If you have a newer batch, and your Medley's front LEDs say "Codec", "AUX", and "OPT", please see below for the changes.
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