Features: - Hands-free Design with Wear Clip Keep your ear buds always in place, offering a more enjoyable, stable and comfortable experience. - Rechargeable Earphone Cable Simply pull out and insert the earbud into your ear when answering a call, preventing ear fatigue and the awkward ear attachment, maximum length is 305mm. -Multipoint Connection Supports to connect two mobile phones simultaneously. Pairing easily. - High quality and clear voice Even in a noisy environment like inside a gym and running, cycling on the road. - Supports for IOS and Android system Specification: - Bluetooth vision: V4.0 / V4.1 compatible: V3.0, V2.1, V2.0, V1.2, V1.1 - Supports model: headset hands-free A2DP Avrcp - Charging time: about 1.5 - 2 hours - Talking time: up to 6.5 hours - Standby time: up to 75 hours - Transmission distance: 10m (without obstructions) - Temperature: 0 - 50 Deg.C - Battery: built-in lithium-ion polymer battery - Capacity: 75mAh