Perfect Compatibility: Compatible with iPhone 6/6s, 6 Plus/6s plus, SE, 5, 5c, 5s, 4s, iPad Air, Mini Samsung Galaxy S6, S5, S4, S3 Note 4 3, HTC M9, M8, M7, LG Flex 2 G3, G2 Other Bluetooth Android iOS Smart Cell phones/Devices Specifications: Model: RQ8 Bluetooth Headphones Bluetooth Version: V4.1+EDR Bluetooth Profile: HFP ,HSP,A2DP,AVRCP,APTX Supports APT-x feature (HiFi stereo) RF Range: 10m Cable Length: 60cm Noise reduction: CVC6.0 Supports IPHONE battery display Stand-by time: about 175 hours Calculating Conversation Time: about 5 hours Charging time: About 2 hours Dimension: 40 x 24 x 32mm/1.57 x 0.94 x 1.26 inch Net Weight: 16.4g Package Inclues: 1 x RQ8 Wireless Bluetooth Headset 1 x Charge USB Cable 2 x Silicone Ear Buds 2 x Earhooks 1 x Buckle 1 x English Instruction