... cancellation technology, DSP technology. 3. Incoming caller ID display with LCD in English 4. Incoming caller ID read in English.( TTS ... plating , nice view, no blind spot, greatly increase the safety. 12. Directly hook on the back mirror, without occupation of space ... : 1. Bluetooth version: V2.0 and A2DP 2. Working voltage: 12 to 24V DC 3. Frequency: 2.4GHz 4. Battery capacity ...