Reference: CM5076 Design Bluetooth Headset V3.0 with integrated microphone. It Includes on / off button to answer incoming calls, volume controls, keypad for song choice, etc. Range: up to 10 meters. Operation Time: 10h. (listening to music), 11h (telephone conversation), 250h (on standby). Recharge time: 2.5 hours. Measures: 16,5 x 15 x 3,3 cm. Reference: CM5105 Modern Bluetooth Headset V3.0 with integrated microphone. It can also be used to speak by telephon. Battery Duration up to 4 hours. Action range up to 10 meters. Colors: White and black. Measures: 19 x 16,5 x 5 cm. √ All models have an area to be printed