Defender Twins 638 Headset Wireless In-ear Calls/Music Bluetooth Black
- NAI
- Closed
- 65mm
- 35mm
- 40g
- 80g
- 5.0+EDR
- 98dB
- 42dB
- 10m
- 2402–2480GHz
- 10mm
- RoHS,CE
- 30mm
- 91mm
- Calls/Music
- A2DP,HFP,AVRCP,HSP
- Intraaural
- 20 - 20000Hz
- 100 - 16000Hz
- Wireless
- Built-in microphone
- Headset
- 30mm
- 120mm
- In-ear
- 2h
- Black