Item Type: Wireless Bluetooth Earpiece Material: ABS, PC Product Size: Approx. 11x6x2cm / 4.3x2.4x0.8in Rechargeable Battery Type: Built in Lithium Battery (Shipped with Built in Battery) Battery Model: Headset: 450825 Battery, Charging Compartment: 602040 Battery Battery Capacity: Headset: 60mah Battery , Charging Compartment: 500mah Battery Package List 1 x Bluetooth Headset 1 x Charging Compartment 1 x Charging Cable 2 x Ear Caps 1 x Instruction Manual All data are measured manually, and there are certain errors in the measurement results. 1SINGLE EAR: Single ear wireless bluetooth headset with adjustable ear hook, not easy to fall off, convenient for talking and driving. 2NOISE COOLING: Wireless Bluetooth earpiece adopts noise canceling technology, effectively reduce external noise, comfortable to wear. 3LONG BATTERY LIFE: Long battery life, no need to worry about battery depletion for long time talking and long distance driving. 4360 DEGREE PANORAMIC SOUND: Bluetooth headset has better resolution and lower distortion, realizing excellent surround sound, more immersive experience. 5AUTO RECONNECT: Remove the headset for automatic pairing, and automatically disconnect the headset when it is put into the charging compartment.