4
5
6
1
5
4
3
2
10
7
8/9
8/9
11
13
12
Standard/Power BTe
alT987-dViW
alT977-dViW open - alT977-dViW
alT787-dViW
alT777-dViW open - alT777-dViW
alT587-dViW
alT577-dViW open - alT577-dViW
mini-BTe
alT967-diW open - alT967-diW
alT767-diW open - alT767-diW
1. Programme button
2. Battery compartment & On/Off switch
3. Sound outlet
4. Front microphone inlet
5. Back microphone inlet
6. Volume control (optional)
7. Direct audio input
8. Left/Right indicator (Left=Blue/Right=Red)
9. Battery lock (optional)
10. Model
11. Manufacturer
12. Serial number
13. Sports lock
