•It will tell you the call number, safe for you to answer/reject the phone call during driving •Operating frequency range: ISM (2.4-2.48Ghz) Bluetooth-compatible connecting within 10 meters •Built-in speaker and microphone, giving you more convenience •Support connecting 2 mobile phones at the same time •You can use the voice assistant to start the calling Specifications: •Color: Black •BT Version: V5.0 +EDR •BT Profile Supported: HFP, HSP, A2DP •Operating Frequency Band: 2.4Ghz to 2.48Ghz •AC / DC Charger: DC5V 300mA •Battery: Lithium 3.7V, 600mAh •Holding Time: about 10 Hours •Standby Time: about 500 Hours •Charging Time: 2~3 Hours •Item Size: Approx. H85 * W80 * D20MM •Item Weight: Approx. 64g Package included: •1 x Speakerphone •1 x Car Charger •1 x USB Cable •1 x Clip •1 x English User Instruction •Other things not included