Sennheiser CX 400BT True Wireless

Weight: 4.9 g
Equipment: - headphones; - 4 pairs of silicone ear pads; - charging case; - documentation.
Design: Intracanal
Description: Design: in-ear, device type: wireless TWS headphones, design features: microphone, case charging type: USB Type-C, acoustic design type: closed, operating time: 7 h, supported codecs: AAC
Additional Information: Battery type: own Li-Ion; Case included: yes; Replaceable ear pads: yes; Work profile support: A2DP,AVRCP,HFP Hands-free
Harmonic coefficient: 0.1 %
Working hours: 7 h
Sensitivity: 107 dB
Design features: Microphone
Charging time: 1.5 h
Device type: Wireless tws earphones
Mount type: Without attachment
Maximum playback frequency: 21000 Hz
Minimum repeatable frequency: 5 Hz
Technology: Dynamic
Number of microphones: 2
Fast charging: 10 minutes of charging is enough for 1 hour of work
Bluetooth version: 5.1
Membrane diameter: 7 mm
Type of acoustic design: Closed
Supported codecs: AAC, SBC, aptX
Wireless connection type: Bluetooth
Charging case height: 42 mm
Charging case depth: 34 mm
Case charging type: USB Type-C
Charging Case Width: 59 mm
Weight of one earpiece: 6 g
Battery life in case: 20 h
Number of drivers: 1