Main Features:- Bluetooth version: V2.1 + EDR
- Bluetooth operating frequency: 2.4GHZ
- Connection distance: 0 - 10M
- Effective distance calls Mic: 0 - 1M
- Charge voltage: DC 5V
- Built-in lithium battery capacity: 400mAh
- Standby current: 25mA
- Standby time: 16H
- Operating ambient temperature: -10 - 70 degrees
- Storage temperature: -20 - 80 degrees Bluetooth version: Bluetooth V2.1
Standby time: 16 hours
Features: Durable，Portable
Functions: Improve driving safety
Color: Black Package weight: 0.128 kg
Product size (L x W x H): 9.80 x 4.50 x 2.25 cm / 3.86 x 1.77 x 0.89 inches
Package size (L x W x H): 15.00 x 7.00 x 5.00 cm / 5.91 x 2.76 x 1.97 inches Package Contents: 1x Bluetooth Car Kit， 1 x USB Cable， 1 x Car Charger