Main Features:<br />AITA AT-BT21 mini Bluetooth V4.0 stereo headset<br />Support multipoint connection<br />Support voice prompt in English<br />Support handsfree calls<br />Support voice control and songs switching<br />Adopt latest CSR technology， compatible with Bluetooth V4.0， V3.0， V2.1， V2.0， V1.2， V1.0<br />Automatic connection after power on<br />Built-in 300mAh battery<br />Power level can be displayed on iOS mobilephones<br /><br /><br />    Specifications<br />General<br />	 Brand: aita                                                  <br />                        Model: AT-BT21                                                  <br />                        Color: Red，Purple，Gold，Gray                                                  <br />                        Wearing type : In-Ear                                                  <br />                        Function: Microphone，Multi connection function，Answering Phone，Song Switching，Voice control，Bluetooth                                                	<br />Product Details<br />	 Connectivity : Wireless                                                  <br />                        Connecting interface : Micro USB                                                  <br />                        Application: Mobile phone                                                  <br />                        Talk time: 6h                                                  <br />                        Music Time: 10h                                                  <br />                        Standby time: 200h                                                	<br />Extended Function <br />	 FM frequency range: 2.4Hz-2.4835GHz                                                  <br />                        Bluetooth: Yes                                                  <br />                        Bluetooth version: V4.0                                                  <br />                        Bluetooth distance: W/O obstacles ≤10m                                                  <br />                        Bluetooth protocol: HSP v1.2，A2DP v1.2，AVRCP v1.4，HFP v1.6                                                  <br />                        Bluetooth mode: Hands free                                                	<br />Dimension and Weight<br />	 Product weight: 0.005KG                                                  <br />                        Package weight: 0.155 KG                                                  <br />                        Product size (L x W x H): 3.200 x 2.200 x 2.800 cm / 1.26 x 0.866 x 1.102 inches                                                  <br />                        Package size (L x W x H): 18.000 x 12.000 x 4.000 cm / 7.087 x 4.724 x 1.575 inches                                                	<br />Package Contents<br />	 Package Contents: 1 x Headset， 1 x Charging Cable ( 27cm )， 1 x English / Chinese User Manual                                                	<br /><br /><br /><br />                                            <br /><br /><br /><br />                                                <br />