Item Type: Bluetooth Earpiece Material: ABS Bluetooth Version: V5.2 Support Protocol: HSP HFP A2DP AVRCP Bluetooth Usage Frequency: 2.4Ghz Built In Polymer Lithium Battery: 50mAh Communication Distance: Approx. 10m/32.8ft Package List 1 x Bluetooth Earpiece 1 x Charging Cable 1 x Instruction Book 2 x Ear Cap 1LONG BATTERY LIFE: Bluetooth earpiece has a long battery life and can play music for 10 hours on a full charge, so you can unleash your potential by focusing on sports. 2NOISE CANCELLING: Waterproof wireless earpiece has intelligent noise cancellation and you can have HD calls, which is perfect for sports, business and more. 3WATER AND SWEAT RESISTANT: Wireless bluetooth earpiece is water and sweat resistant, so you don't have to worry about sweat causing damage to your headset. 4NON SLIP EAR HOOK: Single ear bluetooth headset comes with non slip ear hooks, ergonomic design. Communication distance is 10m. 5SUPPORTS BLUETOOTH DEVICES: Single ear bluetooth headphone supports devices with bluetooth capabilities, such as cell phones, for iPhone, computers, etc.