1. The smallest size phone in the world. 2. Used as a Bluetooth earphone for making a call, listening to music, free your hands from your cell phone, iPad and tablet PC etc. 3. Insert a SIM card, it can be used as a independent cell phone.Specification: General Model BM10 Central Processing Unit(CPU) RDA8851 SIM Quantity Dual SIM SIM Types Nano SIM Card RAM 24MB ROM 32MB Support Language French, English, German, Spanish Network 2G GSM 850/900/1800/1900MHz Type GSM BT Yes Display Screen Size 0.66 inch Connectivity Ports 1 x Micro USB 2 x Nano SIM card slots Battery Battery Types Detachable, Li-polymer Battery Battery Capacity 300mAh Standby time 120 hours Dimensions & Weight Size 68*28*13mm Package Include Package Contents 1 x Phone 1 x User Manual 1 x USB Cable Package Weight One Package Weight 0.09kgs / 0.19lb One Package Size 15cm * 8.3cm * 3.1cm / 5.91inch * 3.27inch * 1.22inch Qty per Carton 100 Carton Weight 7.50kgs / 16.53lb Carton Size 33cm * 45cm * 34cm / 12.99inch * 17.72inch * 13.39inch Loading Container 20GP: 528 cartons * 100 pcs = 52800 pcs40HQ: 1226 cartons * 100 pcs = 122600 pcs