Design pioneer,Classic model-TDS610 1) Steady layout based on abstract triangle mode with slight changing on the surface, stand out design point, and clarify levels. 2) Comfortable, free wearing , ear in accord with earphone. 3.Clear, excellent sound ,communication becomes more brilliant. Specifications: 1) Bluetooth protocol: CSR 1.2V & 2.0V 2) Operation range: 10m (33 feet) 3) Talk time: up to 7 hours 4) Standby time: up to 240 hours 5) Charging time: about 2 hours(charging at the first time for about 8 hours) 6) Battery: Li-polymer battery, 130mAh More detail, you feel free to contact us any time! Email: wuq(a) MSN: tendystar9(A)