Model Number: AKB-BSH568A Key Specifications/Special Features: Sports wireless stereo Bluetooth earphone with microphone in-ear for phone computerCSR 8645IPX41. Compatible with all Bluetooth enabled audio equipments, such as PC, iPad, iPod, cell phone, tablet PC, MP3 player2. CSR chip, supports profiles of HSP, HFP, A2DP, AVRCP3. Bluetooth compliance: Bluetooth V4.04. Range: up to 10 meters free field5. Battery: rechargeable 3.7V/200mAh Lithium-ion battery6. Charging time: less than 1 hours7. Successive working time: about 8 hours8. Standby time: 180 hours9. Crystal clear sound quality10. Phone functions: answer/end call11. Audio functions: V+/V-/previous/next song/ power/pause