1. ฺฺBottom of the box 2. Behind of speaker
3. Headphones
4. Marshall Bluetooth application (Only model support App)
Download app link (iOS & Android)
Go to Marshall Bluetooth-->About device-->Serial number
1. ฺฺBottom of the box 2. Behind of speaker
3. Headphones
4. Marshall Bluetooth application (Only model support App)
Download app link (iOS & Android)
Go to Marshall Bluetooth-->About device-->Serial number